Patents
More topics under "C07D - Heterocyclic compounds" (1,537,440)
C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192)
C07D 203 - Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom (1,097)
C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom (6,868)
C07D 207 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom (40,304)
C07D 209 - Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom (45,780)
C07D 211 - Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings (37,939)
C07D 213 - Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members (63,273)
C07D 215 - Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems (27,676)
C07D 217 - Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems (11,865)
C07D 219 - Heterocyclic compounds containing acridine or hydrogenated acridine ring systems (2,120)
C07D 221 - Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups (10,931)
C07D 223 - Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom (8,732)
C07D 225 - Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom (1,649)
C07D 227 - Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups (473)
C07D 229 - Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms (515)
C07D 231 - Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings (25,550)
C07D 233 - Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings (34,408)
C07D 235 - Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings (15,325)
C07D 237 - Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings (8,468)
C07D 239 - Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings (42,619)
C07D 241 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings (18,673)
C07D 243 - Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms (5,961)
C07D 245 - Heterocyclic compounds containing rings of more than seven members having two nitrogen atoms as the only ring hetero atoms (898)
C07D 247 - Heterocyclic compounds containing rings having two nitrogen atoms as the only ring hetero atoms, according to more than one of groups (239)
C07D 249 - Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms (17,749)
C07D 251 - Heterocyclic compounds containing 1,3,5-triazine rings (10,913)
C07D 253 - Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group (2,967)
C07D 255 - Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups (739)
C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms (9,612)
C07D 259 - Heterocyclic compounds containing rings having more than four nitrogen atoms as the only ring hetero atoms (488)
C07D 261 - Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings (11,459)
C07D 263 - Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings (20,978)
C07D 265 - Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms (11,132)
C07D 267 - Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one oxygen atom as the only ring hetero atoms (2,022)
C07D 269 - Heterocyclic compounds containing rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms according to more than one of groups (111)
C07D 271 - Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms (7,144)
C07D 273 - Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups (2,368)
C07D 275 - Heterocyclic compounds containing 1, 2-thiazole or hydrogenated 1,2-thiazole rings (4,972)
C07D 277 - Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings (33,621)
C07D 279 - Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms (5,149)
C07D 281 - Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one sulfur atom as the only ring hetero atoms (1,924)
C07D 283 - Heterocyclic compounds containing rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms, according to more than one of groups (102)
C07D 285 - Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups (9,964)
C07D 291 - Heterocyclic compounds containing rings having nitrogen, oxygen and sulfur atoms as the only ring hetero atoms (1,087)
C07D 293 - Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms (553)
C07D 295 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms (34,005)
C07D 301 - Preparation of oxiranes (10,136)
C07D 303 - Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom (12,512)
C07D 305 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms (5,442)
C07D 307 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom (47,108)
C07D 309 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings (12,815)
C07D 311 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings (24,127)
C07D 313 - Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom (3,580)
C07D 315 - Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups (1,360)
C07D 317 - Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms (18,224)
C07D 319 - Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms (10,283)
C07D 321 - Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups (2,079)
C07D 323 - Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms (1,581)
C07D 325 - Heterocyclic compounds containing rings having oxygen as the only ring hetero atom according to more than one of groups (168)
C07D 327 - Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms (2,428)
C07D 329 - Heterocyclic compounds containing rings having oxygen and selenium or oxygen and tellurium atoms as the only ring hetero atoms (47)
C07D 331 - Heterocyclic compounds containing rings of less than five members, having one sulfur atom as the only ring hetero atom (456)
C07D 333 - Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom (32,883)
C07D 335 - Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom (4,725)
C07D 337 - Heterocyclic compounds containing rings of more than six members having one sulfur atom as the only ring hetero atom (875)
C07D 339 - Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms (3,352)
C07D 341 - Heterocyclic compounds containing rings having three or more sulfur atoms as the only ring hetero atoms (281)
C07D 343 - Heterocyclic compounds containing rings having sulfur and selenium or sulfur and tellurium atoms as the only ring hetero atoms (52)
C07D 345 - Heterocyclic compounds containing rings having selenium or tellurium atoms as the only ring hetero atoms (419)
C07D 347 - Heterocyclic compounds containing rings having halogen atoms as ring hetero atoms (38)
C07D 401 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom (107,979)
C07D 403 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group (62,587)
C07D 405 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom (69,397)
C07D 407 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group (11,963)
C07D 409 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms (52,226)
C07D 411 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen and sulfur atoms as the only ring hetero atoms (2,465)
C07D 413 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms (64,687)
C07D 415 - Heterocyclic compounds containing the thiamine skeleton (90)
C07D 417 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group (62,773)
C07D 419 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen, oxygen, and sulfur atoms as the only ring hetero atoms (1,431)
C07D 421 - Heterocyclic compounds containing two or more hetero rings, at least one ring having selenium, tellurium, or halogen atoms as ring hetero atoms (480)
C07D 451 - Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.02,4] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof (5,273)
C07D 453 - Heterocyclic compounds containing quinuclidine or iso-quinuclidine ring systems, e.g. quinine alkaloids (5,704)
C07D 455 - Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine (2,122)
C07D 457 - Heterocyclic compounds containing indolo [4, 3-f, g] quinoline ring systems, e.g. derivatives of ergoline, of the formula: , e.g. lysergic acid (836)
C07D 459 - Heterocyclic compounds containing benz [g] indolo [2, 3-a] quinolizine ring systems, e.g. yohimbine; 16, 18-lactones thereof, e.g. reserpic acid lactone (97)
C07D 461 - Heterocyclic compounds containing indolo [3, 2, 1-d, e] pyrido [3, 2, 1-i, j] [1, 5]-naphthyridine ring systems, e.g. vincamine (286)
C07D 463 - Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (613)
C07D 471 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups (64,559)
C07D 473 - Heterocyclic compounds containing purine ring systems (11,932)
C07D 475 - Heterocyclic compounds containing pteridine ring systems (2,718)
C07D 477 - Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (2,484)
C07D 487 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups (57,272)
C07D 489 - Heterocyclic compounds containing 4ah-8, 9 c- iminoethano-phenanthro [4, 5-b, c, d] furan ring systems, e.g. derivatives of [4, 5-epoxy]-morphinan of the formula: (2,334)
C07D 491 - Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups , , or (29,726)
C07D 493 - Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system (17,376)
C07D 495 - Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms (21,336)
C07D 497 - Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms (1,069)
C07D 498 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms (21,960)
C07D 499 - Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (3,448)
C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574)
C07D 503 - Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxapenicillins, clavulanic acid derivatives; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (648)
C07D 505 - Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (556)
C07D 507 - Heterocyclic compounds containing a condensed beta-lactam ring system, not provided for by groups , or; Such ring systems being further condensed (161)
C07D 513 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups , or (15,120)
C07D 515 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen, oxygen, and sulfur atoms as the only ring hetero atoms, not provided for in groups , or (877)
C07D 517 - Heterocyclic compounds containing in the condensed system at least one hetero ring having selenium, tellurium, or halogen atoms as ring hetero atoms (452)
C07D 519 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or (11,041)
C07D 521 - Heterocyclic compounds containing unspecified hetero rings (16,203)
Patents for C07D - Heterocyclic compounds (10,420)
10/1991
10/15/1991CA1290693C BIS(.beta.-HYDROXYETHYL)SULFOXIDE COSMETIC COMPOSITIONS FOR THE TREATMENT OF OILY SKIN AND HAIR, AND APPLICATION THEREOF
10/10/1991WO1991015486A1 Thiophene sulfonamides useful as carbonic anydrase inhibitors
10/09/1991CN1014242B Prepn. of thiadiazole compounds
10/08/1991US5055457 Pharmaceutical combinations product and the preparation and use thereof
10/02/1991EP0449099A2 Retinoide derivatives, their preparation and their use for medicaments
10/02/1991EP0448940A2 Process for the preparation of mannosyl teicoplanin derivatives and mannosyl teicoplanin aglycone
10/02/1991EP0448850A1 2-Alkyl-3-benzoylbenzofurans useful for treating cardiac arrhythmia
10/01/1991US5053521 3-amino butyric acid uptake inhibitors, antiepileptic agents
10/01/1991CA1289958C Process for preparing novel n-substituted 3,4-dihydropyrimidine derivatives
09/1991
09/25/1991EP0229823B1 Polycyclic quinoline, naphthyridine and pyrazinopyridine derivatives
09/25/1991CN1014060B Method for preparaing ortho-azonaphthalene compound
09/18/1991EP0447345A2 New Azaspyro [4.5] decane-7,9-dione derivatives
09/17/1991US5049674 Therapeutically active fluoro substituted benzimidazoles
09/11/1991EP0445796A2 Derivatives of acetic acid
09/11/1991CN1054421A 3-(substituted phenyl) pyrazole derivates, their salts, herbicides obtained from them and process for preparation derivates and salts
09/10/1991US5047554 3-substituted-2-oxindole derivatives
09/10/1991US5047407 Prevention Or Treatment Of Human Immunodeficiency Virus
09/10/1991CA2037153A1 Acetic acid derivatives
09/04/1991EP0444851A2 Hexahydrobenz[CD]indoles and processes for preparation thereof
08/1991
08/28/1991EP0443821A1 Sulphur-based stabilizers for 3-isothiazolones
08/28/1991EP0443449A2 Process for the preparation of oxetanones
08/14/1991EP0302896B1 N-(w-substituted alkyl)-n'-[(imidazole-4-yl)alkyl]guanidine
08/14/1991CN1053787A Triazole antifungal agents
08/14/1991CA2036269A1 Azaspyro¬4.5|decane-7,9-dione derivatives and process for preparing same
08/13/1991US5039808 Therapeutically active cyclopropyl substituted compound
08/08/1991WO1991011186A1 Method and compositions for the synthesis of bch-189 and related compounds
08/08/1991CA2678778A1 Method and compositions for the synthesis of bch-189 and related compounds
08/07/1991EP0440372A1 Triazole antifungal agents
08/07/1991EP0317588B1 Isoxazoles with nootropic activity
08/07/1991EP0210203B1 Propanol derivatives
08/07/1991CN1053607A Hiv protease inhibitors useful for treatment of aids
08/06/1991US5037842 Oxa- and thiazolidinedione hypoglycemic and hypocholesterolemic agents
08/06/1991CA1287347C Process for the preparation of cefodizime
07/1991
07/31/1991CN1053427A Method for preparation of taxol using an oxazinone
07/30/1991US5036099 Anhydrous, crystalline sodium salt of 5-chloro-3-(2-thenoyl)-2-oxindole-1-carboxamide
07/30/1991US5036066 Tricyclic pyridine derivatives
07/25/1991WO1991009020A3 Production of 5-(4'-hydroxyphenyl)hydantoin and d-p-hydroxyphenylglycine from 4-hydroxyacetophenone
07/24/1991EP0437538A1 N-sulfenylated and n-acylated pyrazolines
07/24/1991CN1053232A Fungicides
07/23/1991US5034411 Cardiovascular disorders or antiarrhythmia agents
07/23/1991US5034381 2-(substituted amino) adenosines as antihypertensives
07/23/1991US5034052 Fungicides containing a triazole or imidazole alcohols, also used as plant growth regulators
07/17/1991EP0437058A1 Formation of hydroxyaromatic ketoacetal from an hydroxyaromatic methylketone and production of 5-(4'-hydroxyphenyl)hydantoin and D-p-hydroxyphenylglycine from 4-hydroxyacetophenone
07/17/1991CN1053060A 3-aminopiperidine derivatives and related nitrogen containing heterocycles
07/17/1991CN1013196B Benzoyl urea compounds producing process
07/16/1991US5032165 3-(substituted phenyl)pyrazole derivatives, salts thereof, and herbicides therefrom
07/16/1991CA1286293C 3-phenyl-4-cyanopyrrole derivatives and microbicidal compositions containing them
07/13/1991WO1991010662A1 2-substituted 4,5-diphenyl-imidazoles
07/13/1991CA2073443A1 2-substituted 4,5-diphenyl-imidazoles
07/11/1991WO1991009844A1 Substance p antagonists
07/10/1991EP0436348A2 Pyridyl cyclopropane derivatives with fungicidal activity
07/10/1991EP0436334A2 3-Aminopiperidine derivatives and related nitrogen containing heterocycles
07/10/1991CN1013076B Process for preparing heterocyclic compounds
07/09/1991CA1285942C Plant protection agents based on 1,2,4-triazole derivatives and also new derivatives of 1,2,4-triazole
07/09/1991CA1285938C Active material combination with antithrombotic action
07/05/1991CA2032781A1 Fungicides
07/03/1991EP0434965A2 Alkyl esters of 5-heterocyclic-pyridine-2,3-dicarboxylic acids and 5-heterocyclic 2-(2-imidazolin-2-yl) pyridines and methods for preparation thereof
07/03/1991CN1052674A Heterocyclic chemistry
07/03/1991CN1052670A Therapeutically active fluoro substituted benzimidazoles process for their preparation as well as their use
07/03/1991CN1052668A Compounds for treating inflammatory bowel disease
07/02/1991US5028427 Antibiotic
07/02/1991CA1285561C Naphthoxazines
07/02/1991CA1285560C Derivatives of guanine
07/02/1991CA1285554C Method for preparing crystalline cefadroxil monohydrate
06/1991
06/27/1991WO1991009020A2 PRODUCTION OF 5-(4'-HYDROXYPHENYL)HYDANTOIN AND D-p-HYDROXYPHENYLGLYCINE FROM 4-HYDROXYACETOPHENONE
06/26/1991EP0434394A2 Compounds for treating inflammatory bowel disease
06/26/1991EP0434365A2 HIV protease inhibitors useful for the treatment of aids
06/26/1991EP0433425A1 Process for penems
06/26/1991CN1052482A 氨基酸衍生物 Amino acid derivatives
06/25/1991US5026868 Indenyl imidazoles
06/25/1991US5026855 Stereospecific process for the preparation of furo[3,4-c]pyridine, enantiomer, compounds thus obtained and therapeutical compositions thereof
06/25/1991US5026704 Benzo[f]quinoxaline-2,3(1H,4H)-diones
06/21/1991WO1991009028A1 Therapeutically active fluoro substituted benzimidazoles, processes for their preparation as well as their use
06/21/1991CA2070651A1 Therapeutically active fluoro substituted benzimidazoles, processes for their preparation as well as their use
06/19/1991WO1991009032A1 Piperidine compounds and a pharmaceutical composition
06/19/1991EP0433218A1 Method for the preparation of aminotriazin derivatives
06/19/1991EP0432695A2 Amino acid derivatives
06/19/1991CN1052306A Pharmaceutically active cns compounds
06/19/1991CA2071480A1 Piperidine compounds and a pharmaceutical composition
06/19/1991CA2032259A1 Hiv protease inhibitors useful for the treatment of aids
06/18/1991CA1284995C Cephalosporin compounds and processes for preparing the same
06/18/1991CA1284994C Cephalosporin salts and injectable compositions
06/18/1991CA1284993C Cephalosporins and processes for their preparation
06/18/1991CA1284985C Process for the preparation of a silver-containing catalyst
06/04/1991US5021433 Novel pharmacological compounds
05/1991
05/28/1991US5019570 Cephalosporin compounds
05/28/1991CA1284499C ¬2,5-dihydro-2-oxo-5-phenyl-3-furanyl| amines, methods of manufacture, and use thereof in the production of angiotensin converting enzyme inhibitors
05/22/1991EP0428376A1 Method for preparation of taxol using an oxazinone
05/21/1991US5017569 Cephalosporin derivatives
05/15/1991CN1051357A Improved process for useful diazinylpiperides derivatives
05/15/1991CN1012614B Ceph-3-ene-4-carboxylic acid derivatives and the prepn.
05/14/1991US5015651 Treatment of hypertension with 1,2,4-angiotensin II antagonists
05/14/1991CA1284147C 7-(substituted) amino-3-substituted cephalosporanic acids and esters
05/08/1991CN1051174A Triazolo derivatives and process for their preparation
05/07/1991US5013833 Process for preparing cefuroxime axetil
04/1991
04/30/1991US5011848 Cardiovascular disorders, hypotensive agents
04/24/1991WO1991005762A1 Multi-site metal chelating agents
04/24/1991WO1991005556A1 Camptothecin analogs as potent inhibitors of human colorectal cancer
04/24/1991CA2069886A1 Multi-site metal chelating agents
04/24/1991CA2067491A1 Camptothecin analogs as potent inhibitors of human colorectal cancer
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