Patents
Patents for C07D 319 - Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms (10,283)
01/1993
01/21/1993EP0531458A4 Improved process for the rapid production of cyclic esters.
01/20/1993EP0523619A2 Process for the preparation of N-cyanimidocarbonates
01/20/1993EP0523534A2 Process for the preparation of polyenes
01/20/1993EP0523289A1 Processes for producing doxorubicin, daunomycinone, and derivatives of doxorubicin
01/20/1993CA2071772A1 Preparation of polyenes
01/19/1993US5180521 Liquid crystal displays, cyclohexyl nitriles
01/12/1993US5179216 Anticholesterol agents and atherosclerosis
01/07/1993WO1993000340A1 Improved co-vaporization process for preparing lactide
01/06/1993CN1067659A Process for polymer preparation
01/06/1993CN1067650A Biocidal compounds
01/05/1993US5177222 Sunscreen Agents
01/05/1993US5177219 N-phenyl-N'-thienylmethyl-bis-diamino-5-methylene-1,3-dioxane-4,6-dione compounds
01/05/1993US5177089 Butenoic or propenoic acid derivative
12/1992
12/30/1992EP0520674A1 Antipsychotic benzodioxan derivatives
12/29/1992US5175143 Perfumery materials
12/22/1992US5173510 Simplified thioester and isostere analogs of oleoyl coenzyme A as hypocholesterolemic agents
12/16/1992EP0518436A1 Methylene- and ethylenedioxyphenylazoxycyanide derivatives as fungicides
12/16/1992EP0518428A2 Process for polymer preparation
12/15/1992US5171866 Ethylenically unsaturated cyclic ortho esters
12/15/1992US5171473 Used for electrooptical purposes
12/15/1992US5171472 Phenylcyclohexyldioxane derivatives having an ether bond for electro-optical displays
12/15/1992US5171471 Having wide range of phase transition temperatures for faster optical response times
12/09/1992CN1019393B Substituted n-((4-piperidingl) alkyl) bicyclic condensed oxazol and thiazolaminer
12/08/1992US5169986 Organic nonlinear optical material
12/06/1992WO1992021734A1 Vinyl compounds and liquid-crystal medium
12/06/1992CA2088771A1 Vinyl compounds, and a liquid-crystalline medium
12/02/1992EP0263843B1 Liquid crystal compounds, mixtures and devices
12/01/1992WO1992021671A1 N-arylalkylderivatives of 2-aminomethyl-2,3-dihydro-1,4-benzodioxine and the process of preparation thereof
12/01/1992US5168099 Optically active alkylenedioxybenzene derivatives and their use in therapy
12/01/1992CA2102109A1 N-arylalkylderivatives of 2-aminomethyl-2,3-dihydro-1, 4-benzodioxine and the process of preparation thereof
11/1992
11/24/1992US5166404 Plasticizers for polymers or intermediates for polyimides
11/24/1992US5166377 Thromboxane A2 antagonist as coagulants or vasoconstrictors
11/24/1992US5166367 Antipsychotic benzodioxan derivatives
11/24/1992CA1310630C 11.beta.-PHENYL-GONANES, THEIR MANUFACTURE AND PHARMACEUTICAL PREPARATIONS CONTAINING THEM
11/17/1992US5164517 Process for preparing fluoropolyethers and perfluoropolyethers having neutral or functional end groups and a controlled molecular weight
11/17/1992US5164516 Intermediates for biodegradable polyesters
11/17/1992US5164488 Formation of liposome dispersion
11/17/1992US5164387 Condensed heterocyclic compounds
11/11/1992EP0512755A2 Piperazine derivatives
11/10/1992US5162552 Reacting a glyoxal monoacetal with an aldehyde in presence of a secondary amine and an acid
11/10/1992US5162327 Pyrimidinetrione derivatives, agents containing them and their use as agents for combating pests
10/1992
10/29/1992WO1992015601A3 Heteroanthracycline antitumor analogs
10/28/1992EP0321499B1 Covalently bonded active agents with carbonium ion base groups
10/28/1992CN1065659A N-phenylcarbmate compound, proces for preparing same and biocidal composition for control of harmful organisms
10/20/1992WO1992018494A1 Methyl esters of aldimino- or ketimino-oxy-orthotolylacrylic acid, manufacturing process and fungicides containing them
10/20/1992US5157144 2-(halomethyl)-alpha-(methoxyimino) benzeneacetic acid methyl ester
10/20/1992CA2106458A1 Methyl esters of aldimino- or ketimino-oxy- orthotolylacrylic acid, manufacturing process and fungicides containing them
10/13/1992US5155251 Process for the synthesis of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate
10/13/1992US5154851 Liquid crystal compound having large optical anisotropy value
10/13/1992CA1308850C Polyoxyalkylene amino alcohols and polyoxyalkylene amino 1,3-dioxanes and 1,3-dioxolanes
10/13/1992CA1308660C Pharmaceutical compositions containing 1,3-dioxane alkenoic acid derivatives
10/07/1992EP0507190A1 Compositions with physiological cooling effect and active compounds suitable for such compositions
10/06/1992US5153353 Antilipemic agents
10/06/1992CA2064918A1 Compositions having a physiological cooling effect and active compounds suitable for these compositions
10/01/1992WO1992016497A1 Amino acid derivative having renin inhibitory activity
09/1992
09/27/1992WO1992017220A1 Method and device for filtering plasma
09/24/1992DE4109236A1 Cyclic carbonate ester prepn. - by transesterifying aliphatic hydroxy cpd. with di:aryl carbonate, tempering, and depolymerising prod.
09/24/1992DE4109169A1 Wasserloesliche nicht ionische roentgenkontrastmittel sowie mittel und verfahren zu ihrer herstellung Wasserloesliche nonionic roentgenkontrastmittel as well as medium and process for their production
09/23/1992EP0505005A1 Alkylenedioxyphenyl ether derivatives having anti-ischaemic, memory enhancing and anti-convulsive activity
09/22/1992US5149837 1,3-Dioxane intermediate
09/22/1992US5149833 Co-crystallization of D-lactide and L-lactide
09/21/1992WO1992016498A1 Water soluble, non-ionic x-ray contrasting agents and process for producing the same
09/21/1992CA2081905A1 Water-soluble, non-ionic x-ray contrast agents and method of preparing them
09/21/1992CA2063314A1 Alkylenedioxyphenyl ether derivatives having anti-ischaemic, memory enhancing and anti-convulsive activity
09/20/1992WO1992016236A1 Compositions and method comprising aminoalcohol derivatives as membrane penetration enhancers
09/20/1992CA2106483A1 Compositions and method comprising aminoalcohol derivatives as membrane penetration enhancers
09/17/1992WO1992015572A1 Process for the preparation of 1,4-dioxane-2,5-diones
09/17/1992WO1992015544A1 Method of making 2,7-dimethyl-2,4,6-octatrienedial and derivatives thereof
09/17/1992CA2104478A1 Process for the preparation of 1,4-dioxane-2,5-diones
09/09/1992EP0502661A2 Heteroanthracycline anti-tumor analogues
09/09/1992EP0502374A1 Process of preparation of 3-alkoxycarbonylpropenals and 3-dialkoxymethylpropenals
09/09/1992EP0502307A2 Substituted 4,5-diamino-1,2,4-triazol-3-(thi)ones
09/08/1992US5145954 Derivatives of alphaphenylacrylic acid and their use in agriculture
09/02/1992EP0501268A2 Liquid crystal compounds ending with a 1-alkinyl group
09/01/1992US5144046 Synthesis of cyclic ketene acetals
08/1992
08/29/1992WO1992015601A2 Heteroanthracycline antitumor analogs
08/29/1992CA2104768A1 Heteroanthracycline antitumor analogs
08/26/1992WO1992014693A1 Method of preparation of pilocarpines and intermediates thereof
08/26/1992EP0500364A1 Optically active 1,3-dioxin-4-ones
08/26/1992EP0500348A1 Disubstituted ureas and thioureas
08/26/1992EP0499717A1 Ethylenically unsaturated cyclic ortho esters
08/26/1992CA2101445A1 Method of preparation of pilocarpines and intermediates thereof
08/25/1992US5142054 Optically pure 1,3-dioxenones, methods for preparing same and use thereof
08/20/1992CA2061447A1 Disubstituted ureas and thioureas derivatives
08/19/1992CN1017896B Oxygen-containing heterocyclic compound and process for preparing same
08/18/1992US5140040 Alpha-2-adrenergic receptor antagonist; glaucoma; congestive heart failure; hypotensive agents; headaches; metabolic disorders (diabetes, obesity)
08/15/1992WO1992014723A1 Purification of cyclic ketene acetals
08/15/1992WO1992014722A1 Synthesis of cyclic ketene acetals
08/15/1992CA2100581A1 Purification of cyclic ketene acetals
08/15/1992CA2100580A1 Synthesis of cyclic ketene acetals
08/12/1992EP0498770A1 Certain benzodioxole, benzodioxane and benzodioxepin derivatives
08/12/1992EP0498396A2 N-phenylcarbamate compound, process for preparing the same and biocidal composition for control of harmful organisms
08/12/1992EP0498381A1 Novel yellow couplers for photographic elements and processes
08/12/1992EP0497816A1 Treatment of hiv infections and compounds useful therein.
08/12/1992EP0201575B1 New picoline derivatives, preparation process thereof, utilization thereof and drugs containing them
08/12/1992CN1063488A Hydrazine derivative and pesticidal composition comprising said derivative as an effective ingredient
08/11/1992US5138074 Continuous catalyzed vapor phase dimeric cyclic ester process
08/11/1992US5138073 Reacting alkylene oxide with carbon dioxide; organic antimony halide catalyst; low temperature; minimizes conversion to glycol in presence of water
08/11/1992CA1306257C Substituted ureas, a process for their preparation and their application particularly to ennobling cellulose fibres
08/09/1992CA2060788A1 Certain benzodioxole, benzodioxane and benzodioxepin derivatives
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