Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 305 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms
Patents for C07D 305 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms (5,442)
10/1991
10/22/1991US5059623 Fungicides
10/17/1991WO1991013066A3 METHOD FOR PREPARING CIS-β-PHENYLGLYCIDIC-(2R,3R) ACID
09/1991
09/05/1991WO1991013066A2 METHOD FOR PREPARING CIS-β-PHENYLGLYCIDIC-(2R,3R) ACID
09/05/1991WO1991013053A1 DERIVATIVE OF β-PHENYLISOSERINE, PREPARATION AND UTILISATION THEREOF
09/04/1991EP0444482A2 Oxetanones
09/03/1991US5045624 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom
08/1991
08/28/1991EP0443449A2 Process for the preparation of oxetanones
08/20/1991US5041447 Oxetanocin-related compounds and pharmaceutical compositions containing them
07/1991
07/31/1991CN1053427A Method for preparation of taxol using an oxazinone
07/30/1991CA1287005C Aerocavin and aerocyanidin - antibiotics
07/25/1991WO1991009025A3 Partially fluorinated compounds and polymers
07/24/1991EP0437764A1 Stable aqueous emulsions of alkyl-keten dimer
07/19/1991CA2034355A1 Stabilized aqueous alkyldiketene emulsions
07/10/1991CN1052853A Oxetane derivatives their preparation and their use as anti-fungal or fungicidal agents
06/1991
06/12/1991WO1991009025A2 Partially fluorinated compounds and polymers
06/12/1991EP0431968A1 Oxetane derivatives, their preparation and their use as anti-fungal or fungicidal agents
06/12/1991CA2071201A1 Partially fluorinated compounds and polymers
06/08/1991CA2031635A1 Oxetane derivatives, their preparation and their use as anti-fungal or fungicidal agents
06/05/1991EP0430887A2 Heteroatom containing 3,3-bis perfluoroalkyl oxetanes and polyethers therefrom
05/1991
05/22/1991EP0428376A1 Method for preparation of taxol using an oxazinone
05/22/1991CN1012643B Process for preparating oxetanones compound
05/21/1991CA1284333C ANTIHYPERCHOLESTEROLEMIC .beta.-LACTONES
05/14/1991US5015744 Method for preparation of taxol using an oxazinone
05/08/1991EP0425557A1 Preparation of nitratoalkyl-substituted cyclic ethers.
05/08/1991EP0425555A1 Preparation of epoxy nitrates.
05/02/1991WO1991005761A1 Treatment of hiv infections and compounds useful therein
05/01/1991CN1051036A Treatment of hiv infections and compounds useful therein
04/1991
04/03/1991EP0419653A1 Derivatives of taxol, pharmaceutical compositions thereof and methods for the preparation thereof
04/02/1991US5004815 Method for synthesizing β-lactones and alkenes
03/1991
03/12/1991US4999438 Process for the reduction of the polymer portion in the dimerization of ketene
02/1991
02/27/1991EP0414610A1 Process for the enantioselective preparation of phenylisoserine derivatives
01/1991
01/08/1991US4983746 Oxetanones and process for their production
12/1990
12/27/1990CA1278304C Taxol derivatives, their preparation and pharmaceutical compositions containing them
12/27/1990CA1278303C Process for the preparation of taxol and 10-desacetyl taxol
12/19/1990EP0402646A1 Retroviral protease inhibiting compounds
12/12/1990CN1047668A Method of recovering epoxy chloropropane and toluene
12/05/1990EP0400971A2 Method for preparation of taxol
11/1990
11/28/1990CN1010586B Process for manufacture of oxetanones
11/01/1990WO1990012792A1 METHOD FOR SYNTHESIZING β-LACTONES AND ALKENES
10/1990
10/17/1990CN1010006B Production of chiral rhodium-diphosphine complexes and use in asymmetric hydrogenations
10/02/1990US4960910 Oxetane derivatives
10/02/1990US4960790 Antitumor agents, water soluble
09/1990
09/10/1990WO1990010443A1 Derivatives of taxol, pharmaceutical compositions thereof and methods for the preparation thereof
09/10/1990CA2028096A1 Derivatives of taxol, pharmaceutical compositions thereof and methods for the preparation thereof
08/1990
08/07/1990US4946992 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom
08/07/1990US4946972 Process for distillation of 2,2,3,3-tetrafluorooxetane
07/1990
07/18/1990CN1043931A Process for reducing amount of polymers during dimerization reaction of ketene
07/17/1990US4942184 Water soluble, antineoplastic derivatives of taxol
07/11/1990EP0377438A1 Method for the reduction of the polymer content in the dimerisation of ketene
06/1990
06/26/1990US4937359 Process for preparing (S)-4-methyl-β-butyrolactone
06/26/1990CA1270837A1 Oxetanones
06/19/1990US4935409 Aminophenylethylamine yield promoters
06/05/1990US4931463 Oxetanones
05/1990
05/08/1990US4924012 Process for preparing derivatives of baccatine III and of 10-deacetyl baccatine III
05/08/1990US4924011 Condensation, esterification; antitumor and anitleukemia agents
05/01/1990CA1268599A1 Cis-platinum complexes with a pentaerythritol derivative as the ligand, a process for their preparation and a pharmaceutical agent containing these compounds
03/1990
03/20/1990US4910322 Synthesis of geminal dinitro compounds
03/13/1990US4908460 Contacting 2,2,3,3-tetrafluorooxetane with an absorbent comprising silica gel or alumina
02/1990
02/22/1990DE3827222A1 Fluorinated aminophenyl ethers
02/08/1990WO1990001029A1 Preparation of epoxy nitrates
02/08/1990WO1990001028A1 Preparation of nitratoalkyl-substituted cyclic ethers
02/06/1990US4898981 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom
01/1990
01/03/1990EP0349047A2 Treatment of diabetic ketoacidosis
12/1989
12/27/1989EP0348350A1 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and polymers therefrom
12/13/1989EP0189577B1 Process for the preparation of oxetanones
12/12/1989US4886581 Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane
11/1989
11/14/1989US4880790 Anticancer, antitumor agents
11/02/1989EP0339418A2 Substituted anilides of the cycloalkyl- or heterocyclyl-carboxylic acids
10/1989
10/25/1989CN1036574A Purinyl and pyrimidinyl cyclo-butanes
10/11/1989EP0336841A1 Process for the preparation of baccatin III derivatives and of desacetyl-10 baccatin III
10/11/1989EP0336840A1 Process for the preparation of taxol
10/10/1989US4873260 Treatment of diabetic ketoacidosis
09/1989
09/27/1989EP0334250A2 Oxetanocin-related compounds and process for producing same
09/21/1989WO1989008453A1 New, water soluble, antineoplastic derivatives of taxol
09/05/1989US4864040 Monohalogenotrifluorooxetane and its preparation
08/1989
08/15/1989US4857653 Process for the preparation of taxol and 10-deacetyltaxol
08/08/1989US4855466 Purinyl cyclobutanes
08/08/1989US4855318 Iodopropargyl ethers useful as antimicrobial agents
08/02/1989EP0326055A1 Process for distillation of 2,2,3,3-tetrafulorooxetane
08/02/1989EP0326054A1 Process for purification of 2,2,3,3-tetrafluorooxetane
07/1989
07/11/1989US4847271 Antihypercholesterolemic β-lactones
07/05/1989EP0322854A1 Purinyl cyclobutanes
05/1989
05/30/1989US4835294 2-Substituted-6-methyl-1,3-dioxan-4-one
04/1989
04/25/1989US4824975 Oxidation of 3-/hydroxymethyl/oxetane
03/1989
03/28/1989US4816477 Antihypercholesterolemic β-lactones
03/22/1989EP0308188A2 Chiral epoxyalcohol recovery in asymmetric epoxidation process
03/21/1989US4814470 Taxol derivatives, their preparation and pharmaceutical compositions containing them
02/1989
02/28/1989US4808735 Mixing with water, alcohol, thio or acid, heating, distilling
02/21/1989US4806662 Fluids having an oxetane structure and improved characteristics for special applications
02/21/1989US4806564 Antihypercholesterolemic beta-lactones
02/14/1989US4804424 Nitrate ester-miscible polyether polymers
02/01/1989CN1030759A Pesticidal compounds
01/1989
01/25/1989EP0300797A1 Pesticidal compounds
12/1988
12/28/1988CA1247547A Leucine derivatives
11/1988
11/30/1988EP0293132A1 Antihypercholesterolemic beta-lactones
11/30/1988EP0293128A2 Antihypercholesterolemic beta-lactones
11/02/1988EP0288867A2 Aminophenyl ethyl amine derivatives, process for their preparation and their use as performance promotors
11/02/1988CN88102282A Process for decreasing ketene tripolymer in diketen rude products
10/1988
10/26/1988EP0287894A2 Process for reducing the amount of ketene trimer in diketene
10/05/1988EP0285254A1 Antihypercholesterolemic betalactones
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