作者:David C. Forbes、Sampada V. Bettigeri、Susanna C. Pischek
DOI:10.1039/b822779a
日期:——
Diastereomeric ratios of >95 : 5 were obtained when performing methylene transfers onto imines originating from D-mannitol and (S)-(−)-2-methyl-2-propane sulfinamide or ascorbic acid and (R)-(−)-2-methyl-2-propane sulfinamide.
Sigmatropic Rearrangement of Vinyl Aziridines: Expedient Synthesis of Cyclic Sulfoximines from Chiral Sulfinimines
作者:Toni Moragas、Ryan M. Liffey、Dominika Regentová、Jon-Paul S. Ward、Justine Dutton、William Lewis、Ian Churcher、Lesley Walton、José A. Souto、Robert A. Stockman
DOI:10.1002/anie.201604188
日期:2016.8.16
A novel rearrangement of 2‐vinyl aziridine 2‐carboxylates to unusual chiral cyclic sulfoximines is described herein. The method allows the synthesis of substituted cyclic sulfoximines in high yields with complete stereocontrol, and tolerates a wide substrate scope. A one‐pot process starting directly from sulfinimines provides access to complex chiral sulfoximines in only two steps from commercially
[EN] THERAPEUTIC COMPOUNDS AND COMPOSITIONS<br/>[FR] COMPOSÉS ET COMPOSITIONS THÉRAPEUTIQUES
申请人:EXITHERA PHARMACEUTICALS INC
公开号:WO2018118705A1
公开(公告)日:2018-06-28
The present invention provides compounds that inhibit Factor XIa or kallikrein and pharmaceutically acceptable salts thereof and compositions thereof. The present invention also provides methods of using these compounds and compositions.
The stereoselective synthesis of enantioenriched ANTI- and SYN-4-aminoalk-1-yn-3-ols is described. Initial reaction of racemic 3-(methoxymethoxy)allenylzinc with enantiopure Ellman’s ( SS )-( TERT-butylsulfinyl)imines was shown to give straightforward and highly stereoselective access to ANTI-( SS ,3 S,4 R)-3-(methoxy-methoxy)-4-sulfinamidoalk-1-ynes. Upon treatment with dry methanolic hydrochloric