Patents
Patents for C07D 319 - Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms (10,283)
12/1993
12/07/1993CA1325012C Process for preparing perfluoroethers by fluorination with elemental fluorine
12/01/1993EP0571522A1 Synthesis of cyclic ketene acetals.
11/1993
11/30/1993US5266708 New intermediates, process for their preparation, and their use for the synthesis of vitamins A and E
11/30/1993US5266706 Solvent scrubbing recovery of lactide and other dimeric cyclic esters
11/30/1993US5266592 Compositions which have a physiological cooling effect, and active compounds suitable for these compositions
11/30/1993US5266585 Arylphenyl ether derivatives, compositions containing these compounds and use thereof
11/24/1993CN1022830C Preparation of benzamides
11/23/1993US5264592 Lactide melt recrystallization
11/23/1993US5264441 Anticholesterol agents
11/23/1993US5264149 Liquid crystal compounds having a terminal 1-alkynyl residue
11/18/1993EP0570245A2 Octahydronaphthalene oxime derivatives for cholesterol biosynthesis inhibition, their preparation and use
11/18/1993EP0569998A2 Stereoselective microbial or enzymatic reduction of 3,5-dioxo esters to 3-hydroxy-5-oxo, 3-oxo-5-hydroxy, and 3,5-dihydroxy esters
11/16/1993US5262082 Ferroelectric liquid crystal compounds having perfluoroether terminal portions
11/16/1993CA2096281A1 Octahydronaphthalene oxime derivatives for cholesterol biosynthesis inhibition, their preparation and use
11/11/1993WO1993022396A1 Liquid crystal compounds having perfluoroether terminal portions
11/11/1993WO1993019058A3 Process for the production of cyclic esters from hydroxy acids and derivatives thereof
11/11/1993CA2133652A1 Liquid crystal compounds having prefluoroether terminal portions
11/09/1993US5260474 Pesticidal substituted aminophenyl carbamates
11/09/1993US5260460 Process for the preparation of fluorine-substituted aminobenzodioxoles and -benzodioxanes and new intermediates
11/03/1993EP0568074A1 Process for the preparation of germanium dihalide ether adducts
11/03/1993EP0567848A1 Process for the alpha-chlorination of arylethern
11/03/1993EP0470099B1 Hair colorants
10/1993
10/26/1993US5256800 Optically active 2,2-dimethyl-1,3-dioxin-4-ones and method for preparing same
10/20/1993EP0566226A1 Quinazoline derivatives
10/20/1993EP0565732A1 Benzodioxane derivative
10/20/1993EP0565538A1 Solvent scrubbing recovery of cyclic esters
10/19/1993US5254699 Thermally and chemically stable fluids; heat transfer media
10/19/1993US5254698 Liquid crystals
10/19/1993US5254595 Cardiovascular disorders
10/13/1993EP0565132A2 Benzoheterocyclic compounds
10/06/1993EP0563345A1 Novel 4-arylpiperazines and 4-arylpiperidines
10/05/1993US5250574 Halogen substituted phenoxy phenols
10/05/1993US5250501 Herbicidal compounds
10/05/1993US5250220 2,5-disubstituted heterocyclic compounds, and a liquid-crystalline medium
09/1993
09/30/1993WO1993019058A2 Process for the production of cyclic esters from hydroxy acids and derivatives thereof
09/30/1993WO1993018754A1 Self-assembling diketopiperazine drug delivery system
09/29/1993EP0562049A1 Novel 4-arylpiperazines and 4-arylpiperidines
09/29/1993EP0308438B1 Liquid crystal phase containing tolanes
09/28/1993US5248793 Process for the synthesis of (4R-cis)-1,1-dimethylethyl 6-iodomethyl or 6-(phenyl-substituted)sulfonyloxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate
09/28/1993CA1322553C Hydrogenated 1-benzooxacycloalkylpyridinecarboxylic acid compounds
09/21/1993US5247101 Cyclic perfluoroketones and method of making
09/21/1993US5246935 Piperazinyl derivatives and methods of treating central nervous system ailments relating to the 5-ht2 receptor system
09/16/1993WO1993018073A1 Process for producing copolymers from monoethylenically unsaturated monomers containing acid groups and from n-vinyl lactames
09/16/1993WO1993018021A1 Rare earth metal catalyzed oligomerization of alpha-hydroxycarboxylic acids and conversion to dimeric cyclic esters
09/16/1993WO1993018020A1 Solventless dimeric cyclic ester distillation process
09/16/1993WO1993018019A1 Continuous reduced pressure dimeric cyclic ester production
09/16/1993DE4207900A1 Verfahren zur herstellung von copolymerisaten aus saeuregruppen enthaltenden monoethylenisch ungesaettigten monomeren und n-vinyllactamen A process for the preparation of copolymers of monoethylenically unsaturated monomers containing saeuregruppen and n-vinyl lactams
09/16/1993CA2131788A1 Solventless dimeric cyclic ester distillation process
09/16/1993CA2131313A1 Process for producing copolymers from monoethylenically unsaturated monomers containing acid groups and from n-vinyl lactames
09/15/1993EP0559860A1 Halovinyl-derivatives.
09/15/1993EP0559859A1 Fluorobenzonitriles and liquid crystalline mixtures containing them
09/14/1993US5245047 Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
09/09/1993DE4206765A1 Novel penta:fluoro:ethyl:ketone derivs. - useful as low viscosity components of liq. crystal mixts.
09/08/1993EP0559088A1 Dioxane type liquid crystal substance
09/08/1993EP0559071A2 Metals and/or oxides containing catalyst elements and process for the oxidative decomposition of cyclic organic compounds
09/07/1993US5243076 Adrenergic stimulant intermediates
09/07/1993US5243053 Methylene meldrum's acid precursors
09/02/1993WO1993017030A1 Immunological detection of organophosphates
09/02/1993WO1993017017A1 [(benzodioxan, benzofuran or benzopyran)-alkylamino] alkyl substituted guanidines as selective vascoconstrictors
09/02/1993WO1993016986A1 Azo oxime ethers and their use as fungicides
08/1993
08/31/1993US5240924 N-acylamino acid derivatives and their use
08/25/1993EP0556889A1 Method of preparing aryl(homo)piperazines
08/25/1993CN1075479A 1,3-oxazine-4-one derivatives, herbicides containing same, and nove, intermediates for preparation of same
08/24/1993US5238602 Electrooptical cells
08/24/1993US5238600 Electrooptical cells
08/24/1993US5238599 Low threshold voltage, low driving voltage
08/24/1993CA1321577C Covalently bonded active agents with carbonium ion base groups
08/19/1993WO1993016036A1 Novel amidine derivatives, their preparation and their use as mediaments with ltb-4 antagonistic effect
08/19/1993CA2427890A1 New amidine derivatives, the preparation and use thereof
08/19/1993CA2089534A1 Method of preparing aryl(homo)piperazines
08/18/1993CN1021825C Prepn. for aromatic w-alkylimide-tetrahydro-6h-1,3-thiazine-6-one derivatives
08/17/1993US5236560 Solventless dimeric cyclic ester distillation process
08/12/1993DE4203665A1 Poly:halogenated dibenzo:dioxin and dibenzofuran cpds. removal from solids - with prods. obtd. in powder or granule from by extn. with inert organic solvent and dehalogenation and redn. with alkali metal
08/10/1993US5234948 Treating anxiety
08/10/1993CA1321197C 2,3-dihydro-1h-phenalene-2-amino compounds as anti-psychotic drugs
08/06/1993CA2129526A1 Novel amidine derivatives, their preparation and their use as medicaments with ltb4 antagonistic effect
08/05/1993WO1993015127A1 Continuous process for the manufacture of lactide and lactide polymers
08/05/1993WO1993015069A1 Solvent scrubbing recovery of lactide and other dimeric cyclic esters
08/05/1993WO1993015064A1 1,3-oxazin-4-one derivative, herbicide containing the same, and novel intermediate for producing the same
08/04/1993EP0553213A1 Process for the synthesis of (4r-cis)-1,1-dimethylethyl-6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate.
08/04/1993CN1074908A 水溶性喜树碱衍生物 Water-soluble derivative of camptothecin
07/1993
07/28/1993EP0552226A1 Lactide production from dehydration of aqueous lactic acid feed.
07/27/1993US5231197 Method for producing ethylenically unsaturated graftable orthoesters
07/27/1993US5230826 Electrooptics
07/22/1993WO1993004057A3 Herbicides containing 3-aminobenzo[b]thiophenes as an antidote
07/09/1993EP0565538A4 Solvent scrubbing recovery of cyclic esters.
07/08/1993WO1993013154A1 Copolymer of lactone and carbonate and process for the preparation of such a copolymer
07/08/1993WO1993012754A2 Tertiary and secondary amines as alpha-2 antagonists and serotonin uptake inhibitors
07/08/1993CA2126229A1 Copolymer of lactone and carbonate and process for the preparation of such a copolymer
07/08/1993CA2125392A1 Tertiary and secondary amines as alpha-2-antagonists and serotonin uptake inhibitors
07/07/1993EP0549698A1 Catalytic production of lactide directly from lactic acid.
07/06/1993US5225445 Phenethanolamine derivatives having β2 -adrenoreceptor selective stimulant action
06/1993
06/30/1993EP0548224A1 Process for preparing albuterol, acetal, hemi-acetal, and hydrates of arylglyoxal intermediates thereof.
06/29/1993US5223630 Glycolide purification process
06/29/1993CA1319707C Process for the preparation of serinol
06/23/1993CN1073438A Improved process for synthesizing biphenyl difat
06/22/1993CA1319364C Fused heterocyclic compounds
06/16/1993EP0546583A1 Piperazinyl-and piperidinyl-cyclohexanols
06/16/1993EP0546391A2 Process for the preparation of fluorine containing anilines.
06/15/1993US5220042 1,4-benzoquinone derivatives and benzene derivatives, and process for preparing the same
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