Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 317 - Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
Patents for C07D 317 - Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms (18,224)
06/1991
06/12/1991WO1991009025A2 Partially fluorinated compounds and polymers
06/12/1991EP0432021A1 Intermediates, procedure for their preparation and their use in the synthesis of vitamins A and E
06/12/1991EP0179788B1 Pesticides
06/12/1991CA2071201A1 Partially fluorinated compounds and polymers
06/11/1991US5023354 Condensation of an alditol with benzoic aldehyde
06/11/1991US5023342 Cyclic sulfate compounds
06/11/1991US5023340 Glycosidase inhibitors
06/11/1991US5022914 Cyclohexenone oxime ethers, their preparation and their use as herbicides
06/05/1991EP0430807A1 Process for the preparation of halogeno-acetals from enamines
06/05/1991EP0430806A1 Process for the preparation of haloketals from enamines
06/05/1991EP0429902A1 1,1-Dialkoxy-2-oxo-6-aryl-3,5-alkadienes
06/05/1991CN1012733B Process for the preparation therapeutic agents and their use
06/04/1991US5021590 Process for producing N-alkyl-carbamates
06/04/1991US5021581 Fungicides
06/02/1991CA2031249A1 Process for producing halogenoacetals from enamines
06/02/1991CA2031245A1 Process for producing halogenoacetals from enamines
06/02/1991CA2031241A1 Intermediates, process for the preparation thereof and their use for the synthesis of vitamins a and e
05/1991
05/30/1991WO1991007385A1 Preparation of propenoic acid derivatives
05/29/1991EP0429316A1 Process for the preparation of piperonal
05/29/1991EP0428849A2 Retroviral protease inhibitors
05/28/1991US5019592 Aryloxyphenylpropylamines and their preparation and use
05/28/1991CA1284504C Piperidine compounds
05/22/1991EP0428434A2 Compounds of aromatic amines and their enantiomers, process for their preparation and pharmaceutical compositions containing them
05/22/1991EP0428423A2 Aryloxy alkyl benzenes, processes for their preparation and pharmaceutical compositions containing them
05/22/1991EP0427773A1 Method of preparation of 2',3'-dideoxynucleosides
05/22/1991CN1012642B Process for preparation of sulfamoylbenzoic acid derivatives
05/21/1991US5017589 Novel amino acid derivatives
05/15/1991EP0427480A1 2-Hydroxy-3-phenoxypropylamino compounds
05/14/1991US5015777 Process for the preparation of aromatic beta-diketones
05/14/1991US5015769 Hair dyes formed by reaction of an alcohol with a phenol in the presence of a strong base for etherification followed by amination
05/14/1991US5015761 Esters and alcohol derivatives of dimethyltricyclo(6.2.01.6)un decanes as perfumes
05/14/1991US5015745 Ketalization, sulfonylation, amination and diazotization to form a demethoxydaunomycinone
05/14/1991US5015743 2-Deoxy-2,2-difluororibose
05/14/1991CA2029715A1 Fluoro-naphthacenediones, their glycosilated derivatives and their manufacture procedures
05/08/1991EP0426460A1 Oxime ether derivative, preparation thereof and germicide containing the same
05/08/1991EP0426253A1 Process for the separation of R and S-2,2R1, R2-1,3-dioxolane-4-carboxylic acid
05/08/1991DE3937116A1 Cyclo-carbonate-contg. ester(s) - by reaction of corresp. cyclo-carbonate-alcohol(s) with mono- or di-carboxylic acids in the presence of acid catalyst and solvent
05/07/1991US5013851 Intermediates for the production of podophyllotoxin and related compounds
05/07/1991US5013734 Novel esters of phenylalkanoic acid
05/07/1991US5013478 Liquid crystals
05/07/1991CA2029282A1 Chemical compounds
05/07/1991CA2029275A1 Aromatic amine compounds, their method of preparation and pharmaceutical compositions in which they are present
05/07/1991CA1283925C Compositions used to dye keratinous fibers, specifically human hair, the said dye containing the precursors of oxydative dyes and heterocyclic couplers, process in which the said compositions are used, novel heterocyclic couplers used and process for their preparation
05/07/1991CA1283915C (2-cyano-2-arylethyl)pyridines
05/03/1991CA2029040A1 Oxime ether derivative, preparation thereof and germicide containing the same
05/02/1991WO1991005564A1 Synthesis and use of amino acid fluorides as peptide coupling reagents
05/02/1991EP0424525A1 Novel amines and their use
05/02/1991EP0424385A1 Lipophilic polyamines useful for treating hypercholesterolemia
05/02/1991CA2029173A1 Process for the separation of r and s-2,2-r, r-1,3-dioxolane-4-carboxylic acid
04/1991
04/30/1991US5012004 Ether compounds and their production, and insecticidal and/or acaricidal compositions containing them
04/30/1991US5011992 Antiemetics
04/30/1991US5011954 Epoxides and their preparation
04/30/1991US5011950 Aromatic amine derivatives
04/30/1991US5011948 Cleavage of isoxazole rings, reduction to amine, cyclization, lactonization; anticarcinogenic agents
04/24/1991EP0424350A1 Derivatives of 1,4-dideoxy-1,4-imino-d-mannitol
04/24/1991EP0424349A1 Synthesis of 1,4-dideoxy-1,4-imino-D-mannitol
04/23/1991US5010101 Pesticidal aminomethylheterocyclic compounds
04/23/1991US5010097 Collagenase inhibitors, antiarthritic agents
04/23/1991CA1283422C Hydroxyvitamin d _compounds and process for preparing same
04/21/1991CA2028076A1 Synthesis of swainsonine and analogs thereof
04/18/1991WO1991003472A3 Process for the preparation of halogenated 2,2-bis(trifluoromethyl)-1,3-dioxolanes
04/17/1991EP0423009A1 Process for the preparation of 2,2-difluoro-1,3-benzodioxole
04/17/1991EP0422523A2 Process for the preparation of cyclic carbonates
04/16/1991US5008465 Preparing ether by heating alcohol with olefin
04/16/1991US5008461 Preparation of benzyl ketones
04/16/1991US5008452 Aminoethyl oximes
04/16/1991US5008294 Topical administration
04/16/1991CA1283114C Azolyl-derivatives endowed with antifugal activity
04/10/1991EP0421102A2 Substituted acrylic acid esters
04/10/1991CN1050545A Inhibitor of retroinfection viral protease
04/09/1991US5006162 Certain 2-(2-substituted benzoyl)-1,3,5-cyclohexanetriones
04/09/1991US5006158 Herbicides
04/04/1991WO1991004246A1 Method for preparing amino acid derivatives and therapeutical applications of same
04/03/1991EP0420327A1 Phenylalkyl amine derivatives having anti-ischaemic activity
04/02/1991US5004843 Reacting A Vinyl Epoxide With An Organolithium Compound
04/02/1991US5004840 Novel process for preparing semi-caronic aldehydes
04/02/1991US5004832 Preparing alpha-arylalkanoic acids
04/02/1991US5004594 Benzylidenecamphor sulphonamides derived from amino acids and their application in cosmetics, particularly as sunscreens
04/02/1991CA1282410C Process for the preparation of optically active ó-arylalkanoic acids and novel intermediates thereof
03/1991
03/29/1991CA2026382A1 Inhibitors of retroviral proteases
03/27/1991EP0419327A1 Amino acid derivatives, method for their preparation and their therapeutic application
03/27/1991EP0418933A1 Derivatives of alcadienes, their preparations and medicinal compositions containing them and intermediates
03/27/1991EP0418430A1 Phenylalkyl amine derivatives having anti-ischaemic activity
03/26/1991US5003091 Preparation of 3-memory-4,5-methylenedioxybenzaldehyde
03/26/1991US5003087 Preparing a 1-hydroxy-2,3-dialkylcarbonyloxy-4-(3,4-alkoxy phenyl)naphthalene or a lactone by oxidizing the corresponding a 1-ketone-tetralin derivative
03/26/1991US5003084 From Alkylene Glycols and Urea
03/26/1991US5002605 Alkylidine aminooxyamide compounds useful in controlling undesirable vegetation
03/23/1991CA2025731A1 Phenylalkyl amine derivatives having antiischaemic activity
03/21/1991WO1991003232A1 Anti-inflammatory active ingredients for cosmetic preparations
03/20/1991EP0418021A2 Composition and method for hardening an aqueous alkali metal silicate solution
03/20/1991EP0417187A1 Ruthenium-catalyzed production of cyclic sulfates
03/20/1991CN1050019A Method for production of 1,3-dioxolanes
03/19/1991WO1991004251A2 Polyhalodihydrodioxins and polyhalodioxoles
03/19/1991US5001160 1-aryl-1-hydroxy-1-substituted-3-(4-substituted-1-piperazinyl)-2-propanones and their use in treatment of neurogenic bladder disorders
03/19/1991US5001159 N-aminobutyl-n-phenylarylamide compounds and their application in therapy
03/19/1991US5001152 Use of catechol-O-methyl transferase (COMT) inhibitors and their physiologically acceptable salts for ulcer treatment
03/19/1991CA2065379A1 Polyhalodihydrodioxins and polyhalodioxoles
03/19/1991CA1281728C CYCLIC ACETALS OR KETALS OF .beta.-KETO ESTERS OR AMIDES
03/19/1991CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines
03/13/1991EP0417059A2 Bicyclic tetrahydroxylated pyrrolizidines
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