专利号:US-6388128-B1 优先权日:1998-10-05 标 题:Stannane synthesis of prostanoids 发明人:CONROW RAYMOND E 权利人:ALCON MFG LTD 摘要:The present invention is directed to novel methods of prostanoid synthesis. Specifically, the invention is directed to the addition of alpha chains to prostanoids using cis-alkenylstannane intermediates.
专利号:US-6838581-B2 优先权日:2002-12-04 标题:Process for the preparation of enantiomerically pure 3-phenyl-3-hydroxypropylamine 发明人:KUMAR PRADEEP; PANDEY RAJESH KUMAR 权利人:COUNCIL SCIENT IND RES 摘要:The present invention relates to an improved process for the synthesis of enantiomerically pure 3-phenyl-3-hydroxypropylamine of formula I; more particularly the present invention relates to the said process using styrene; n n nthe synthetic strategy features a Sharpless asymmetric dihydroxylation (SAD) route to the target compound, using styrene, a readily accessible starting material gives the optically pure dihydroxy compound (ee >97%; the selective monotosylation of primary alcohol, nucleophilic displacement by cyano and subsequent reduction to amino group furnishes the desired 3-phenyl-3-hydroxypropylamine in enatiomerically pure form, a key intermediate in the synthesis of variety of oxetine related anti-depressant drugs.
专利号:US-6162949-A 优先权日:1994-12-16 标 题 :Process for preparation of the pharmaceutically desired (S)-oxetine enantiomers 发明人:GATTUSO MARK J 权利人:UOP LLC 摘要:Improved processes for preparation of the (S)-oxetines in high enantiomeric purity centers on resolution using simulated moving bed chromatography of a racemic precursor early in the oxetine synthesis. Resolution is effected with high enantiomeric purity, and subsequent reactions of the desired enantiomer performed with high optical specificity to maintain enantiomeric purity. The undesired enantiomer may be racemized and recycled to the resolution phase to avoid loss.
专利号:US-5889186-A 优先权日:1994-12-16 标 题:Process for preparation of the pharmaceutically desired (S)-oxetine enantiomers 发明人:GATTUSO MARK J 权利人:UOP INC 摘要:Improved processes for preparation of the (S)-oxetines in high enantiomeric purity centers on resolution using simulated moving bed chromatography of a racemic precursor early in the oxetine synthesis. Resolution is effected with high enantiomeric purity, and subsequent reactions of the desired enantiomer performed with high optical specificity to maintain enantiomeric purity. The undesired enantiomer may be racemized and recycled to the resolution phase to avoid undesired losses.
专利号:US-6458955-B1 优先权日:1994-12-16 标 题 :Process for preparation of pharmaceutically desired enantiomers 发明人:GATTUSO MARK J 权利人:UOP LLC 摘要:Improved processes for preparation of high enantiomeric purity compounds center on resolution using simulated moving bed chromatography of a racemic precursor early in the synthesis. Resolution is effected with high enantiomeric purity, and subsequent reactions of the desired enantiomer performed with high optical specificity to maintain enantiomeric purity. The undesired enantiomer is racemized and recycled to the resolution phase to avoid loss.
专利号:WO-0020386-A1 优先权日:1998-10-05 标 题 :Stannane synthesis of prostanoids
参考标题:A One-Pot Reaction Of α-Imino Rhodium Carbenoids And Halohydrins: Access To 2,6-Substituted Dihydro-2H-1,4-Oxazines 作者:Kieran D. Jones,Michael J. Nutt,Elena Comninos,Alexandre N. Sobolev,Stephen A. Moggach,Tomoya Miura,Masahiro Murakami,Scott G. Stewart |发布日期:2020.5.1 摘要:A Rh(II)-Catalyzed Reaction Between 1-Tosyl-1,2,3-Triazoles And Halohydrins To Provide 2,6-Substituted 3,4-Dihydro-2H-1,4-Oxazines Under Basic Conditions. The Reaction Is Proposed To Undergo A Rhodium Carbenoid 1,3-Insertion Into O-H Followed By An Annulation. The Scope Includes Phenyl Or Alkenyl C4-Substituted Triazoles And A Range Of Halohydrins Using Catalytic Rh2Oct4 And K2Co3. A Synthesis Of The
合成参考文献
摘要:Lipshutz, B. H.; Ghorai, S., Science of Synthesis Knowledge Updates, (2014) 2, 178. 摘要:Diéguez, M.; Bäckvall, J.-E.; Pàmies, O., Science of Synthesis, (2019) , 172. 摘要:Kanomata, K.; Akai, S., Science of Synthesis, (2022) , 190.