| 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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| 09/23/1980 | US4224321 Biologically active tetracyclic compounds and pharmaceutical compositions containing same |
| 09/16/1980 | US4223154 Preparation of 2-(3-aryl-5-isoxazol) benzoyl halide |
| 09/16/1980 | CA1085852A1 1,3-dihydro-1- 3-(1-piperidinyl)propyl -2h- benzimidazol-2-ones and related compounds |
| 09/09/1980 | CA1085392A1 Arylmalonamido-1-oxadethiacephalosporins |
| 09/03/1980 | EP0015140A1 Thermolysis of 2-(3-aryl-isoxazol-5-yl)benzoic acids, salts and halides from 3'-(aryl)-spiro(isobenzofuran-1(3H),5'(4'H)isoxazol)-3-ones |
| 09/02/1980 | US4220786 Reaction of rubradirin with pyridine and acetic anhydride |
| 09/02/1980 | US4220773 Process for the manufacture of aza-spirodecanes |
| 09/02/1980 | US4220772 Process for the preparation of oxadiazolopyrimidine derivatives |
| 09/02/1980 | US4220766 Oxazolines |
| 08/26/1980 | US4219644 Fortimicins AH and AI |
| 08/26/1980 | US4219550 Tranquilizers, antidepressants |
| 08/26/1980 | US4219478 Rifamycin compounds |
| 08/20/1980 | EP0014402A1 Novel 20-0-acylmaytansinoids, process for their preparation and pharmaceutical compositions containing them |
| 08/19/1980 | US4218463 3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid |
| 08/19/1980 | US4218462 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1-substituted-1-carbade-thiapen-2-em-3-carboxylic acids |
| 08/19/1980 | US4218459 6-Amido-1-carba-2-penem-3-carboxylic acid |
| 08/19/1980 | CA1084055A1 Derivatives of 1-oxa-3,8-diaza-spiro- 4,5 -decanes, their preparation and application as light stabilizers |
| 08/12/1980 | US4217453 6-Amido-3-substituted-amino-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid |
| 08/12/1980 | US4217278 3-Nitro-rifamycins S and SV |
| 08/12/1980 | US4217277 Process for producing 3-amino-rifamycins S and SV |
| 08/12/1980 | US4217276 Rifamycin compounds |
| 08/12/1980 | CA1083577A1 Substitutes n-methylene derivatives of thienamycin |
| 08/06/1980 | EP0014181A2 Compounds with antibiotic activity, their manufacture by fermentation and pharmaceutical preparations containing them |
| 08/05/1980 | CA1083144A1 Rifamycin compounds |
| 07/29/1980 | US4215216 Antiallergens, antisecretory agents, antiulcer agents |
| 07/29/1980 | US4215043 Antibiotics |
| 07/29/1980 | US4215010 Substituted 1,3,3-trimethylspiro(indoline-2,3'-(3h)-napth(2,1-b)(1,4)oxazine) |
| 07/29/1980 | US4214891 Triazolone herbicides |
| 07/29/1980 | CA1082701A1 Production of isoxazolo 3,4-d pyrimidines |
| 07/22/1980 | CA1082183A1 Biologically active tetracyclic diazepino- dibenzazepine and diazepino-dibenzoxazepine compounds |
| 07/22/1980 | CA1082182A1 Pyrrolo-dibenzo-oxazepines, thiazepines and azepines |
| 07/15/1980 | US4212881 Streptovaricin C derivatives |
| 07/15/1980 | US4212873 4-Desoxy-thiazolo[5,4-c]rifamycin derivatives and their use as antimicrobial agents |
| 07/15/1980 | US4212828 Intermediates for anthracycline antibiotics |
| 07/09/1980 | EP0013111A2 3'-(substituted phenyl)-spiro(isobenzofuran-1(3H),5'(4'H)-isoxazol)-3-ones, process for their preparation, their use as herbicides and plant growth regulants and their application to the preparation of isoxazole derivatives |
| 07/08/1980 | CA1081218A1 Rifamycin compounds |
| 07/08/1980 | CA1081214A1 Process for preparing an intermediate for cns depressants |
| 06/24/1980 | US4209629 3'-(Substituted phenyl)-spiro[isobenzofuran-1(3H),5'(4'H)-isoxazol]-3-ones |
| 06/24/1980 | US4209518 Antibiotic |
| 06/24/1980 | CA1080232A1 N-(4-piperidinyl)-n-phenylamides and carbamates |
| 06/17/1980 | US4208510 Preparation of 3-aryl-isoxazol-5-yl benzoates |
| 06/17/1980 | US4208422 1-Substituted-pen-2-em-3-carboxylic acids |
| 06/11/1980 | EP0011777A1 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 |
| 06/10/1980 | US4207318 Novel imidazobenzoxazines |
| 06/03/1980 | US4206219 Antibiotics |
| 05/28/1980 | EP0011302A1 Maytansinoids, their production and use |
| 05/28/1980 | EP0011277A1 Dechloromaytansinoids, their production and use and pharmaceutical compositions containing them |
| 05/28/1980 | EP0011276A1 Maytansinoids, their production and use |
| 05/27/1980 | CA1078376A1 Pentacyclic indolo-quinolizine derivatives |
| 05/20/1980 | CA1077951A1 Process for antibiotic fr 1923 and related compounds |
| 05/14/1980 | EP0010735A1 Maytansinoids, their production and pharmaceutical compositions containing them |
| 05/13/1980 | CA1077475A1 Process for production of substituted 6-aryl-4h-s-triazolo-(3,4-c)-thieno-(2,3-e)-1,4-diazepines and intermediates |
| 04/30/1980 | EP0010317A1 6-, 1- and 2-substituted-1-carbapen-2-em-3-carboxylic acids, processes for the preparation of such compounds and pharmaceutical composition comprising such compounds |
| 04/30/1980 | EP0010316A1 1-, 6- and 2-substituted-1-carba-2-penem-3-carboxylic acids, process for preparing the same and pharmaceutical compositions containing the same |
| 04/29/1980 | US4200748 Pyrido[1',2':4,5][1,4]oxazino[2,3-b]quinoxalines and pyrrolo[1',2':4,5][1,4]oxazino[2,3-b]quinoxalines |
| 04/29/1980 | US4200642 Spiro-oxazolidindiones |
| 04/29/1980 | US4200574 Rifamycin derivatives and process for their preparation |
| 04/29/1980 | US4200573 Derivatives of 3-carboxyrifamycin S and SV and process for their preparation |
| 04/29/1980 | CA1076572A1 Diazepine derivatives |
| 04/22/1980 | US4199507 Oxazole [2,3-c]-coumarin |
| 04/22/1980 | US4199463 Friction resistance, dispersants |
| 04/22/1980 | CA1076120A2 Clavulanic acid esters |
| 04/16/1980 | EP0009989A2 Photographic recording material containing blocked photographically useful compound |
| 04/03/1980 | WO1980000565A1 1,5-diazabicyclo(3.3.0)octadienedione derivatives,preparation and use thereof as fluorescent labelling agents |
| 04/01/1980 | CA1074792A1 Rifamycin compounds |
| 04/01/1980 | CA1074791A1 Rifamycin compounds |
| 03/25/1980 | CA1074325A2 Clavulanic acid and its salts |
| 03/19/1980 | EP0008652A1 New intermediates and their use for the preparation of new oxadiazolo-pyrimidine derivatives |
| 03/18/1980 | US4194047 Substituted N-methylene derivatives of thienamycin |
| 03/18/1980 | US4193920 Azomethine derivatives of rifamycin SV |
| 03/18/1980 | US4193919 Process for preparing rifamycin S using a strong acid cation exchange resin |
| 03/04/1980 | US4191827 Substituted 4-hydroxy pyridones |
| 03/04/1980 | US4191684 Urea derivatives, their preparation, and their use as light stabilizers |
| 02/26/1980 | US4190580 Optically active maytansinoids and maytansinoid production method |
| 02/26/1980 | CA1072553A1 Herbicidal morpholinobenzimidazole |
| 02/20/1980 | EP0008102A1 Process for the preparation of azaspirodecanes |
| 02/20/1980 | EP0008084A1 Novel urea derivatives, their preparation and their use as light stabilizer for polymers |
| 02/20/1980 | EP0008045A1 (1,2)-Annellated 7-phenyl-1,4-benzodiazepine derivatives and salts thereof, processes for their preparation and medicaments containing them |
| 02/19/1980 | US4189586 Preparation of biotin |
| 02/19/1980 | US4189483 Fungicide, insecticides, bactericides, miticides, for plants |
| 02/12/1980 | US4188321 25-Desacetyl rifamycins |
| 02/06/1980 | EP0007643A1 Oxadiazolotriazine derivatives |
| 02/05/1980 | US4187375 Cyclization of an azetidinone-1-hydroxyacetate; antibiotic intermediates |
| 01/29/1980 | US4186200 Novel fused derivatives of 2-pyridones |
| 01/22/1980 | US4185016 Antitumor agents |
| 01/15/1980 | US4183855 Oxazolinoazetidinylbutyric acid derivatives |
| 01/09/1980 | EP0006176A1 Stilbene compounds, process for their preparation and their use as optical brighteners |
| 01/08/1980 | US4182888 Hypotensive agents |
| 01/08/1980 | US4182867 6-[3,6-Dihydro-1(2H)-pyridyl]-pyrimidine-3-oxides |
| 01/08/1980 | US4182855 Antibiotic intermediates |
| 01/08/1980 | CA1069290A1 Oxazolidine friction reducing additives for aqueous drilling fluids |
| 12/25/1979 | US4180571 Arylmalonamido-1-oxadethiacephalosporins |
| 12/25/1979 | US4180507 4-Oxa 2,6 diazabicycloheptane derivatives |
| 12/18/1979 | US4179569 Analgesic intermediates |
| 12/18/1979 | US4179513 Tranquilizers |
| 12/18/1979 | US4179439 Rifamycins and method for their preparation |
| 12/18/1979 | US4179438 Process for the preparation of 3 iodo- and 3 bromorifamycin s |
| 12/12/1979 | EP0005732A1 Use of 2-amino-oxazolo- or 2-amino-thiazolo-[5,4-d]azepines and acid-addition salts thereof for the manufacture of a medicament for the treatment of Angina Pectoris |
| 12/11/1979 | US4178290 Dithiinoacetic acid and its preparation |
| 12/04/1979 | US4177348 Viricides, antineoplastic, antileukemia, anticancer |