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.
本公开涉及杂环化合物和方法,这些方法可能作为ATR激酶的抑制剂,用于治疗或预防癌症。
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.
本公开涉及可作为 ATR 激酶抑制剂用于治疗或预防癌症的杂环化合物和方法。
Chelated complexes of paramagnetic metals with low toxicity