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.
Polymer supported oxazolidin-2-ones derived from l-serine—a cautionary tale
摘要:
The capacity of N-Boc-4-hydroxymethyl-oxazolidin-2-ones to undergo rapid O-O and N-O acyl transfer makes these serine derived chiral auxiliaries unsuitable for attachment to polymers. (C) 2000 Elsevier Science Ltd. All rights reserved.
3-Aminooxetanes: versatile 1,3-amphoteric molecules for intermolecular annulation reactions
作者:Zengwei Lai、Renwei Zhang、Qiang Feng、Jianwei Sun
DOI:10.1039/d0sc04254d
日期:——
Despite the versatility of amphoteric molecules, stable and easily accessible ones are still limitedly known.
尽管两性分子具有多功能性,但稳定且易获取的两性分子仍然知之甚少。
INHIBITOR CONTAINING TRICYCLIC DERIVATIVE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
申请人:Jiangsu Hansoh Pharmaceutical Group Co., Ltd.
公开号:EP3805231A1
公开(公告)日:2021-04-14
An inhibitor containing a tricyclic derivative, a preparation method therefor and a pharmaceutical composition comprising the inhibitor, as well as a use thereof as a phosphoinositide 3 kinase (PI3K) inhibitor in the treatment of cancer and diseases or conditions mediated by or dependent on PI3K imbalance.
[EN] INHIBITOR CONTAINING TRICYCLIC DERIVATIVE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF<br/>[FR] INHIBITEUR CONTENANT UN DÉRIVÉ TRICYCLIQUE, SON PROCÉDÉ DE PRÉPARATION ET SON APPLICATION<br/>[ZH] 含三并环类衍生物抑制剂、其制备方法和应用
[EN] TRICYCLIC DERIVATIVE INHIBITOR, PREPARATION METHOD THEREFOR, AND APPLICATION<br/>[FR] INHIBITEUR DE DÉRIVÉ TRICYCLIQUE, SON PROCÉDÉ DE PRÉPARATION ET APPLICATION<br/>[ZH] 含三并环类衍生物抑制剂、其制备方法和应用
[EN] THREE FUSED RING DERIVATIVE-CONTAINING SALT OR CRYSTAL FORM AND PHARMACEUTICAL COMPOSITION THEREOF<br/>[FR] SEL OU FORME CRISTALLINE CONTENANT UN DÉRIVÉ À TROIS CYCLES FUSIONNÉS ET COMPOSITION PHARMACEUTIQUE ASSOCIÉE<br/>[ZH] 含三并环类衍生物的盐或晶型及其药物组合物