| Patents for 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) |
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| 03/25/1981 | EP0025546A2 Therapeutical use of tranquillizing benzodiazepine derivatives and mixtures containing them |
| 03/25/1981 | EP0025496A1 Maytansinoids, their production and therapeutic compositions containing them |
| 03/24/1981 | US4258049 Inhibiting phenylethanolamine N-methyltransferase with thiadiazolo and oxadiazolotetrahydroisoquinolines |
| 03/24/1981 | EP0018991A4 1,5-diazabicyclo(3.3.0)octadienedione derivatives, preparation and use thereof as fluorescent labelling agents. |
| 03/18/1981 | EP0025108A1 Maytansinoids, their production and therapeutic compositions containing them |
| 03/17/1981 | US4256886 Hypotensive agents, vasodilation |
| 03/17/1981 | US4256746 Antitumor agents; microbiocides; mitosis |
| 03/17/1981 | CA1097627A1 Method for the production of maytansinoids |
| 03/10/1981 | US4255568 2H-Pyrimido[4,5-d][1,3]oxazine-2,4(1H)-dione derivatives |
| 03/10/1981 | US4255432 8-[2-3-Indolyl)ethyl]-1-oxa-3-,8-diazaspiro[4.5]decan-2-ones, pharmaceutical compositions thereof and methods of use thereof |
| 03/10/1981 | CA1097340A1 No translation available |
| 03/03/1981 | US4254135 3-Amino-4-hydroxypyrrolidines |
| 03/03/1981 | US4254121 3-Oxo-5H-pyrimido[2,1-c][1,4 ]benzoxazines |
| 03/03/1981 | US4254118 1-Oxo-5H-pyrimido[2,1-c][1,4]benzthiazine-2-carboxylic acid esters |
| 03/03/1981 | CA1096862A1 Oxadiazolopyrimidine derivatives |
| 02/24/1981 | US4252964 Antitumor agent intermediate, propenyl 3-/dihydrocarbylamino/acrylate, substituted hydroxylamine |
| 02/24/1981 | US4252953 Antibiotic crystalline epimer |
| 02/24/1981 | US4252825 5-fluoro-2-(2-hydroxy-3-tert-butyl amino-propoxy) butyrophenone |
| 02/17/1981 | US4251534 Antihypertensive polyfluorohydroxyisopropyl bicyclic and tricyclic carbostyrils |
| 02/17/1981 | US4251533 Nitrogen-containing heterocyclic compounds |
| 02/17/1981 | US4251529 Ergot peptide alkaloids |
| 02/17/1981 | CA1095908A1 Morpholine derivatives as antibacterial agents |
| 02/11/1981 | EP0023885A1 Method for the introduction of an oxygen-containing functional group into ansamycines, compounds thus obtained, and pharmaceutical compositions containing them |
| 02/11/1981 | EP0023761A1 Tetrahydroisoquinoline derivatives, process for preparing them and compositions containing them |
| 02/11/1981 | EP0023663A2 Method for the preparation of new heterocycles that contain oxygen |
| 02/11/1981 | EP0023578A1 Aminoalkylbenzene derivatives, process for their preparation and pharmaceutical compositions |
| 02/11/1981 | EP0023559A1 2-(Perhydro-1,4-diazino)-pyrimido(5,4-d)pyrimidines, their preparation and medicaments containing them |
| 02/10/1981 | US4250268 Polysilylesters having a polyalkylpiperidine as part of the polymer useful as light stabilizers for plastics |
| 02/10/1981 | US4250095 Imidazobenzodiazepines |
| 02/03/1981 | US4248870 Microbiocides, antitumor agents, and antimitotics |
| 02/03/1981 | CA1095041A1 0-2-isocephem antibacterial agents and processes and intermediates for their production |
| 02/03/1981 | CA1095036A1 Process for producing 3-amino-rifamycins s and sv |
| 02/03/1981 | CA1095035A1 Process for the production of rifamycins |
| 01/28/1981 | EP0022997A1 2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines and synthetic polymer compositions stabilized thereby |
| 01/27/1981 | US4247704 Hexahydro thieno imadazole intermediates for the synthesis of biotin |
| 01/27/1981 | US4247449 Urea derivatives, process for their manufacture and their use as light protecting agents for polymers |
| 01/21/1981 | EP0022628A1 Process for the preparation of oxazolinoazetidinones |
| 01/20/1981 | CA1094063A1 Thieno ¬2,3-d| pyrimidine antiallergic agents |
| 01/13/1981 | US4245104 Production of biotin |
| 01/13/1981 | US4245089 Novel intermediates for β-lactams |
| 01/13/1981 | US4244961 1-Oxa-3,8-diazaspiro[4.5]decan-2-ones antihypertensive agents |
| 01/07/1981 | EP0022086A1 4-Oxa-6-aza-6(phenyl)-spiro(2.4)heptane-5,7-diones, preparation and use as microbicides |
| 01/07/1981 | EP0021178A1 Maytansinoids, their production and use |
| 01/07/1981 | EP0021177A1 Maytansinoids, their production and use |
| 01/07/1981 | EP0021173A1 Maytansinoids, their production and use |
| 01/06/1981 | US4243588 Cyclizing a 2-chloroazetidinone with lead fluoride in dimethyl sulfoxide to obtain the 4-oxa-2,6-diazabicyclo(3.2.0)heptane |
| 01/06/1981 | US4243587 Process for 3β-aminoazetidin-2-ones |
| 01/06/1981 | CA1093071A1 5.alpha.-BICYCLOMYCIN DERIVATIVES |
| 01/06/1981 | CA1093070A1 8.beta.-ALKYL-SUBSTITUTED MORPHINAN-6-ONE COMPOUNDS |
| 12/30/1980 | CA1092604A1 Rifamycin derivatives |
| 12/23/1980 | US4241208 Stabilizers of synthetic polymers against heat and light |
| 12/23/1980 | US4240962 Process for the preparation of imidazobenzodiazepines |
| 12/23/1980 | CA1092110A1 Antibacterial agents |
| 12/23/1980 | CA1092108A1 Oxadiazolopyrimidine derivatives |
| 12/23/1980 | CA1092105A1 Pyrrolo(2,1-b) (3)benzazepines |
| 12/16/1980 | US4239898 Novel 4-(substituted-aminophenoxy)-3-thiophenemethanols |
| 12/16/1980 | US4239683 Antitumor |
| 12/10/1980 | EP0019934A1 Antibiotic C-15003 PND and process for their preparation |
| 12/10/1980 | EP0019788A2 Novel process for the manufacture of thiophene derivatives suited for the manufacture of biotin, process for the manufacture of biotin and novel intermediates in this process |
| 12/09/1980 | US4238616 3-(Substituted)phenyl-5-(β-hydroxyphenethyl)-N-(alkyl)-isoxazole-4-carboxamides |
| 12/09/1980 | US4238486 Treating hypertension and parkinson*s disease |
| 12/09/1980 | CA1091230A1 7-acylamino-8-oxo-3-oxa-1-azabicyclo- ¬4.2.0|octane-2-carboxylic acid derivatives |
| 12/02/1980 | US4237287 Diazotization with sodium nitrite and chlorination with thionyl chloride |
| 12/02/1980 | CA1090806A1 Oxazolines |
| 11/26/1980 | EP0019457A2 Clavulanic acid derivatives, their preparation and pharmaceutical compositions |
| 11/26/1980 | EP0018991A1 1,5-diazabicyclo(3.3.0)octadienedione derivatives, preparation and use thereof as fluorescent labelling agents |
| 11/25/1980 | US4236004 Antisecretory, antiulcer, antiallergens |
| 11/25/1980 | US4235920 Antibiotics |
| 11/25/1980 | CA1090364A2 Azetidinones and their production and use |
| 11/18/1980 | US4234596 3-(2-Aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid |
| 11/18/1980 | US4234581 Thieno[2,3-d]oxazines |
| 11/18/1980 | US4234485 Process for preparing 4-desoxy-thiazolo[5,4-c]rifamycin derivatives |
| 11/12/1980 | EP0018811A1 Antibiotic crystalline epimer, its preparation and pharmaceutical composition containing it |
| 11/12/1980 | EP0018760A1 D-Sesquisodium salt of an oxa-beta-lactam diacid compound and its preparation |
| 11/12/1980 | EP0018594A2 Process for the preparation of 3-(1-hydroxyethyl)-azetidinones |
| 11/11/1980 | US4233446 5-Chloro-7,8-dihydro-7-oxo-pyrido[2,3-d]pyrimidine-6-carboxylic acid derivatives |
| 11/11/1980 | CA1089491A1 Process for asymmetric synthesis of optically active 2-aklanoyl-1,2,3,4-tetrahydro-2-naphthol compounds |
| 11/11/1980 | CA1089470A2 Oxazolidine compounds |
| 11/11/1980 | CA1089469A2 Oxazolidine compounds |
| 11/11/1980 | CA1089457A1 5-nor-bicyclomycin-5-one derivatives |
| 11/11/1980 | CA1089453A1 Rifamycin compounds |
| 11/04/1980 | US4232154 Carbocyclic analogs of cytosine nucleosides exhibiting antiviral and antineoplasticactivity |
| 11/04/1980 | US4232036 6-, 1- and 2-Substituted-1-carbadethiapen-2-em-3-carboxylic acids |
| 10/29/1980 | EP0018139A2 Pyrido (2,3-d) pyrimidine derivatives, pharmaceutical compositions containing them and processes for preparing the pyrido (2,3-d) pyrimidine derivatives |
| 10/29/1980 | EP0017992A1 2-Substituted-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids, processes for preparing them, antibiotic pharmaceutical compositions containing same and process for preparing intermediates |
| 10/28/1980 | US4230712 7-Methyl-8β-lower alkyl or 7-methyl-8-lower alkyl B/C cis or trans morphinan-6-one compounds and therapeutic method of treating pain employing them |
| 10/21/1980 | US4229533 Method for producing antibiotic C-15003 P-4 |
| 10/15/1980 | EP0017617A2 Polyalkylpiperidine spirooxazolones, their application as light stabilisers and polymers stabilised therewith |
| 10/14/1980 | US4228295 Novel cycloheptathiophene intermediates for the synthesis of biotin |
| 10/14/1980 | US4228239 Method for producing antibiotic C-15003 P-3 |
| 10/07/1980 | US4226870 O-, N- and carboxyl derivatives of thienamycin |
| 10/07/1980 | US4226771 Sedatives, anesthetics, imidazobenzodiazepine intermediates |
| 10/07/1980 | US4226767 Intermediates for 3-aminoazetidin-2-ones |
| 10/07/1980 | US4226765 Reaction with an aldehyde in the presence of iron or zinc and acetic acid; cyclization |
| 10/07/1980 | CA1087194A1 Oxazolidine compounds |
| 10/07/1980 | CA1087181A1 Aminoalkylpyrrolobenzoxazalkanes |
| 09/30/1980 | US4225494 Antibiotic c-15003, fungicide, antiprotozoa |
| 09/23/1980 | US4224443 From crotonaldehyde and 5-chlorosalicylhydroxamic acid |
| 09/23/1980 | US4224336 3-(2-Aminoethylthio)-6-amido-7-oxo-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid |
| 09/23/1980 | US4224323 Method for lowering serum uric acid |