The cyclic sulphamidites (2S,4S)- and (2R,4S)-3-benzyl-4-benzyloxymethyl-2-oxo-1,2,3-oxathiazolidine 1 were prepared from S-glycidol in 60-66% overall yield. Nucleophilic ring opening of 1 by cyanide, azide and benzyloxy anions have been studied with respect to regio and stereospecificity. A mild procedure for benzylation of alcohols was introduced.
The cyclic sulphamidites (2S,4S)- and (2R,4S)-3-benzyl-4-benzyloxymethyl-2-oxo-1,2,3-oxathiazolidine 1 were prepared from S-glycidol in 60-66% overall yield. Nucleophilic ring opening of 1 by cyanide, azide and benzyloxy anions have been studied with respect to regio and stereospecificity. A mild procedure for benzylation of alcohols was introduced.
申请人:Board of Regents, The University of Texas System
公开号:US20190016713A1
公开(公告)日:2019-01-17
The present disclosure relates to heterocyclic compounds and methods which may be useful as inhibitors of ATR kinase for the treatment or prevention of cancer.
Cationic ring-opening polymerization of <i>N</i>-benzylaziridines to polyamines <i>via</i> organic boron
作者:Ge-Ge Gu、Tian-Jun Yue、Wei-min Ren
DOI:10.1039/d2cc06817f
日期:——
reports the synthesis of cyclic polyamines via the cationic ring-opening polymerization (CROP) of N-benzylaziridines initiated by tris(pentafluorophenyl)borane. The debenzylation of these polyamines afforded water-soluble polyethylenimine derivatives. The electrospray ionization mass spectrometry and density functional theory results revealed that the CROP proceeded via the activated chain end intermediates
申请人:Board of Regents, The University of Texas System
公开号:US10392376B2
公开(公告)日:2019-08-27
The present disclosure relates to heterocyclic compounds and methods which may be useful as inhibitors of ATR kinase for the treatment or prevention of cancer.