专利号:WO-2009030733-A1 优先权日:2007-09-04 标 题 :Method for the synthesis of 4-alkoxy-, 4-hydroxy- and 4-aryloxy-substituted tetrahydro-furo[3,4-b]furan-2(3h)-one compounds 发明人:QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIO; HANBAUER MARTIN HELMUT FRIEDRICK 权利人:DSM IP ASSETS BV; QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIA GERARDUS; HANBAUER MARTIN HELMUT FRIEDRI 摘要:The present invention relates to a method for the synthesis of enantiomerically and diastereomerically enriched 4-alkoxy-, 4-hydroxy- or 4-aryloxy- substituted tetrahydro-furo[3,4-b]furan-2(3H)-ones by aldol coupling of a suitable hydroxyl-protected hydroxy-acetaldehyde and 4-oxobutanoic acid or an ester thereof, and subsequent removal of the protecting group from the aldol compound and (optionally simultaneous) cyclizations and acetal formation under acidic conditions in the presence of an alcohol, followed by optional isolation of the desired compounds. The invention also relates to compounds according to formulae [Xl] and [XII].
专利号:US-2010159540-A1 优先权日:2007-03-26 标题:Synthesis of resolvins and intermediates, compounds prepared thereby, and uses thereof 发明人:RODRIGUEZ ANA; SPUR BERND 权利人:RODRIGUEZ ANA; SPUR BERND 摘要:Methods are disclosed for the preparation of a new class of lipid mediators known as resolvins, with Resolvin D6 (4,17-dihydroxy-5E,7Z,10Z,13Z,15E,19Z-docosahexaenoic acid) being exemplary. Also disclosed are methods for the efficient synthesis of key intermediates in the preparation of such resolvins, such as isotopically labeled ω-3 fatty acid metabolites, and derivatives and analogs thereof. The invention likewise extends to the intermediates so prepared, and to the resolvins prepared with their use.
专利号:US-7034154-B2 优先权日:1999-08-10 标 题:Synthesis of substituted pyrazolopyrimidines 发明人:GROSS RAYMOND S; WILCOXEN KEITH M; OGLESBY RICHARD CHRISTOPHER 权利人:NEUROCRINE BIOSCIENCES INC 摘要:Methods of making substituted pyrazolopyrimidines generally and, more particularly, N-methyl-N-(3-{3-[2-thienylcarbonyl]-pyrazol-[1,5-α]-pyrimidin-7-yl}phenyl)acetamide. Such compounds have utility over a wide range of indications, including treatment of insomnia. In the practice of the present invention, improved techniques which do not require use and/or isolation of the pyrazole intermediate are disclosed, as well as improved techniques for making the reaction intermediates themselves. Such techniques offer significant advantages, including enhanced efficiency, particularly in the context of large scale manufacture.
专利号:US-4370258-A 优先权日:1978-03-09 标题 :Catalyst system for hydroformylation of olefins 发明人:OGATA IKUEI; KAWABATA YASUZIRO; TANAKA MASATO; HAYASHI TERUYUKI 权利人:AGENCY IND SCIENCE TECHN 摘要:An improved hydroformylation process for preparing aldehydes by reacting olefins with synthesis gas (H2 and CO) under heating and pressure is disclosed. The hydroformylation is carried out in the presence of a platinum catalyst, and assistant composed of a halide of a metal of the group IVb of the Periodic Table and a reaction promotor composed of a specific bidentate ligand of the formula R2X-Z-Y-Z-X-R'2. In this reaction, the platinum catalyst exerts a high activity, and an aldehyde mixture containing a linear isomer at a very high ratio of content is obtained as a product.
专利号:US-2003096374-A1 优先权日:1999-01-27 标题:Synthesis of oligoketides
专利号:US-5232929-A 优先权日:1990-11-28 标 题 :3-aminopiperidine derivatives and related nitrogen containing heterocycles and pharmaceutical compositions and use 发明人:DESAI MANOJ C; ROSEN TERRY J 权利人:PFIZER 摘要:The present invention relates to novel 3-aminopiperidine derivatives and related nitrogen containing heterocyclic compounds, and specifically, to compounds of the formula ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , Y and m are as defined below. These novel compounds are useful in the treatment of inflammatory and central nervous system disorders, as well as other disorders. The invention also relates to novel intermediates used in the synthesis of compounds of the formula I.