| 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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| 09/09/1991 | CA2037654A1 4h-pyrrolo[1,2-a]thieno[3,2-f][1,4]-diazepines, process for the preparation thereof and pharmaceutical compositions containing the same |
| 09/04/1991 | EP0444829A2 Immunosuppressive compounds |
| 09/04/1991 | EP0444678A1 Process for selectively producing hydrate crystals |
| 09/03/1991 | US5045545 [(Imidazol-4(and 5)-yl)methyl] tetracyclic ketones having 5-HT3 antagonist activity |
| 09/03/1991 | US5045542 Immune suppression method employing aryl-substituted naphthyridine and pyridopyrazine derivatives |
| 09/03/1991 | US5045475 Chromogenic Cryptands |
| 09/02/1991 | CA2037300A1 Hydroxymacrolide derivatives having immunosuppressive activity |
| 08/31/1991 | CA2011107A1 Lactam derivatives |
| 08/28/1991 | CN1013687B Tricycle compounds, a process for their production and a pharmaceutical composition containing the same |
| 08/27/1991 | US5043445 Bis-1,3-diazine heterocyclic derivatives as antiarrhythmic agents |
| 08/27/1991 | US5043335 Enzyme inhibitors; cardiovascular and central nervous system disorders |
| 08/27/1991 | CA1288100C 1-(hydroxymethyl)-1,6,7,11b-tetrahydro-2h,4h-[1,3]- oxazino- or thiazino-[4,5-a]-isoquinoline derivatives, process for their preparation and pharmaceutical compositions containingthem |
| 08/21/1991 | EP0442003A1 Antibiotic LL-E 19085 alpha |
| 08/20/1991 | US5041448 (4-piperidinylmethyl and -hetero) purines |
| 08/14/1991 | WO1991012001A1 Angiotensin ii antagonists incorporating a substituted benzyl element |
| 08/14/1991 | WO1991011999A1 Angiotensin ii antagonists incorporating a substituted benzyl element |
| 08/14/1991 | EP0441517A2 Tricyclic amines as novel cholinesterase inhibitors |
| 08/14/1991 | CA2075637A1 Angiotensin ii antagonists incorporating a substituted benzyl element |
| 08/14/1991 | CA2075627A1 Angiotensin ii antagonists incorporating a substituted benzyl element |
| 08/13/1991 | US5039813 2-(4-alkenylphenyl)-5-oxazolones and polymers thereof |
| 08/13/1991 | US5039806 Antisecretory and antiulcer agents |
| 08/13/1991 | US5039802 Arylation process for preparation of chiral catalysts for ketone reduction |
| 08/13/1991 | US5039672 Administering enzyme inhibitors to control diabetes |
| 08/08/1991 | DE4003587A1 New and known heterocyclo-quinoline derivs. |
| 08/07/1991 | CN1053613A Nitrogen-containing spirocycles |
| 08/06/1991 | US5037976 2-oxa-isocephem compounds |
| 08/06/1991 | US5037948 Cyano- and carboxy-substituted spirodilactams |
| 08/06/1991 | US5037834 Heterocycylic-substituted quinoline-carboxylic acids |
| 07/31/1991 | EP0439387A2 Binuclear metal macrocyclic and macrobicyclic complexes for oxygen separation and transport |
| 07/30/1991 | US5036082 Insectidical nitro-substituted heterocyclic compounds |
| 07/30/1991 | CA1287052C Pyrimido[5,4-b][1,4]oxazine derivatives, pharmaceutical compositions containing them and process for preparing same |
| 07/24/1991 | EP0438311A2 Di- and tripeptide renin inhibitors |
| 07/24/1991 | EP0437455A1 Substituted indazole arthropodicides |
| 07/24/1991 | CN1013273B Furobenzisoxazole derivatives preparation |
| 07/24/1991 | CA2034742A1 Binuclear metal macrocyclic and macrobicyclic complexes for oxygen separation and transport |
| 07/23/1991 | WO1991010668A1 Herbicidal sulfonylureas |
| 07/23/1991 | US5034387 2,4-triaminopyrimidine-3-oxides used in cosmetic and pharmaceutical compositions |
| 07/23/1991 | CA2074163A1 Herbicidal sulfonylureas |
| 07/20/1991 | WO1991010669A1 Chelating compounds |
| 07/20/1991 | CA2072080A1 Chelating compounds |
| 07/20/1991 | CA2034524A1 Di- and tripeptide renin inhibitors containing non-peptidal conformationally-constrained tripeptide mimic for leu10-val11-ile12 |
| 07/16/1991 | US5032495 Tetraazaporphyrins and optical recording medium |
| 07/16/1991 | CA1286288C Diels-alder adduct from streptazoline and naphthoquinones andits oxidation products, a process for their preparation and their use |
| 07/10/1991 | EP0436245A1 Substituted 3,4-annelated benzimidazol-2(1H)-ones |
| 07/10/1991 | CN1052864A Quinolone compounds and process for their preparation |
| 07/10/1991 | CN1052863A Cephalosporin derivatives, process for preparing same, antimicrobial composition containing derivatives |
| 07/09/1991 | US5030670 Stable aqueous dispersions of tetraalkylpiperidines |
| 07/09/1991 | US5030630 Use of 6-allyl-2-amino-5,6,7,8-tetrahydro-4H-thiazolo[4,5-d]azepine- for treating diseases caused by reduced secretion of growth hormone |
| 07/09/1991 | CA1285949C Oligomeric diazaoxaspirodecanes, preparation thereof and use thereof as light stabilizers for polymers |
| 07/09/1991 | CA1285948C 1-oxa-3-oxo-4,8-diaza-spiro[4,5]decane compounds |
| 07/09/1991 | CA1285947C Process for the preparation of 1-oxa-3,8-diaza-4-oxo-spiro [4,5] decane compounds |
| 07/03/1991 | EP0435333A2 Cephalosporin derivatives, the process for preparing the same, and antimicrobial composition containing the derivatives |
| 07/03/1991 | EP0434844A1 New cyclic anthranilic acid derivative and method of producing the same |
| 06/28/1991 | CA2032885A1 Substituted 3,4-annelated benzimidazol-2(1h)-ones |
| 06/27/1991 | WO1991009034A1 Indolocarbazoles from saccharothrix aerocolonigenes subsp. copiosa subsp. nov. scc 1951 atcc 53856 |
| 06/26/1991 | EP0434621A2 Rifamycin derivatives and processes for the manufacture thereof |
| 06/26/1991 | EP0433679A2 Pharmaceutical compositions for inhibition of maillard's reaction |
| 06/25/1991 | US5026856 Isoindoline derivative |
| 06/22/1991 | CA2032672A1 Rifamycin derivatives and processes for the manufacture thereof |
| 06/19/1991 | EP0432841A2 Spiro-indoline-oxazine compounds with photochromatic and photosensitizing characteristics and the process for their preparation |
| 06/19/1991 | EP0432839A2 Photochromatic and thermochromatic spiro-oxazepin-oxazine compounds and the process for their preparation |
| 06/13/1991 | WO1991008510A2 Organic optical elements and nonlinear optical devices |
| 06/12/1991 | EP0432029A1 Process for the preparation of synergistins |
| 06/12/1991 | EP0431943A2 Nitrogen-containing spirocycles |
| 06/11/1991 | US5023264 Rapamycin oximes |
| 06/11/1991 | US5023263 42-oxorapamycin |
| 06/11/1991 | US5023262 Hydrogenated rapamycin derivatives |
| 06/09/1991 | CA2031633A1 Nitrogen-containing spirocycles |
| 06/05/1991 | EP0430114A2 Hexahydro-1H-quino[4,3,2-ef][1,4]benzoxazepines and related compounds, a process and intermediates for their preparation and their use as medicaments |
| 05/30/1991 | WO1991007409A1 Tricyclic [6,5,5]/[6,6,5]-fused oxazolidinone antibacterial agents |
| 05/30/1991 | WO1991007403A1 NOVEL BENZO [b] PHENANTHROLINE-1,7 DERIVATIVES, AND THEIR PREPARATION AND THERAPEUTICAL APPLICATIONS |
| 05/30/1991 | WO1991007382A1 Substituted semicarbazone arthropodicides |
| 05/29/1991 | EP0429436A2 Prodrugs of rapamycin |
| 05/29/1991 | EP0429333A1 Process for producing oxazopyrroloquinolines, novel oxazopyrroloquinolines, and use of oxazopyrroloquinolines |
| 05/29/1991 | EP0429304A2 Pyridone-carboxylic acid derivatives and their use as veterinary medicines |
| 05/22/1991 | EP0428365A1 Aminomacrolides and derivatives having immunosuppressive activity |
| 05/22/1991 | CA2030217A1 Pyridone-carboxylic acid derivatives useful as veterinary medicines |
| 05/21/1991 | US5017698 Spirooxazine photochromic compounds |
| 05/21/1991 | CA2029421A1 Pharmaceutical compositions and methods for inhibition of maillard's reaction |
| 05/16/1991 | WO1991006300A1 Naphtheridinone- and pyridooxazinone-pyridone compounds, cardiotonic compositions including same, and their uses |
| 05/15/1991 | EP0427694A1 Synthesis of mannojirimycin derivatives |
| 05/15/1991 | EP0427693A1 Method for azide displacement of alpha-triflates of 1,5-lactones |
| 05/15/1991 | EP0427680A1 Heteroatoms-containing tricyclic compounds |
| 05/15/1991 | EP0426826A1 Substituted isoxazolidines and isoxazolines. |
| 05/14/1991 | US5015740 Antipsychotic 3-piperazinylbenzazole derivatives |
| 05/14/1991 | US5015638 Cardiovascular disorders, cardiotonic agents for congestive he art failure |
| 05/14/1991 | US5015637 Pyrido[3,4-b]pyrrolo[1,2-e][1,4,5]oxadiazepines |
| 05/14/1991 | US5015578 BMY-41950 antitumor antibiotic |
| 05/14/1991 | CA2029860A1 Aminomacrolides and derivatives having immuno-suppressive activity |
| 05/08/1991 | EP0425929A1 Process for the preparation of N-(2-hydroxyethyl)-2-hydroxymethyl-3,4,5-trihydroxy-piperidine and of intermediates |
| 05/07/1991 | US5013731 Bactericides |
| 05/02/1991 | WO1991005549A1 Benzoheterocyclic compounds |
| 05/02/1991 | EP0425235A2 Cytotoxic agents comprising maytansinoids and their therapeutic use |
| 05/02/1991 | EP0424851A1 Quinolone compounds and a process for their preparation |
| 05/01/1991 | CN1051038A Benzoheterocyclic compounds |
| 04/30/1991 | US5011948 Cleavage of isoxazole rings, reduction to amine, cyclization, lactonization; anticarcinogenic agents |
| 04/30/1991 | US5011929 From protected azidolactone by reduction and cyclization |
| 04/30/1991 | US5011924 Chromogenic cryptahemispherands and their preparation |
| 04/30/1991 | US5011860 Aryl-substituted naphthyridine and pyridopyrazine derivatives and their use in treating hyperproliferative skin diseases |
| 04/30/1991 | US5011844 Substituted 4-azatricyclo(22.3.1.04,9)octacos-18-ene derivatives, their preparation and pharmaceutical compositions containing them |