Tosylated glycerol carbonate, a versatile bis-electrophile to access new functionalized glycidol derivatives
摘要:
The reactivity of tosylated glycerol carbonate 2 toward nucleophiles has been exploited to generate glycidol analogues protected with carbonate or carbamate groups. The activated glycerol 2 is a reasonable linking agent with thiol and alcohol nucleophiles and an excellent and selective one with primary amines, allowing efficient bis-functionalizations of glycerol. (C) 2009 Elsevier Ltd. All rights reserved.
Certain 2-dioxacycloalkylthio-2-penem-3-carboxylic acid compounds are useful as antibacterials for treating mammal and have the formula
or a pharmaceutically acceptable salt thereof, wherein: Ris
A is carbonyl, methylene or thiocarbonyl;
B is alkylene having 2-5 carbon atoms;
alk is alkylene having 1-6 carbon atoms;
R1 is hydrogen or a group which results in an ester which is hydrolyzable in vivo; and n is zero or one.
某些 2-二氧杂环烷基硫基-2-青霉烯-3-羧酸化合物可用作治疗哺乳动物的抗菌剂,其分子式为
或其药学上可接受的盐,其中式中
A 是羰基、亚甲基或硫代羰基;
B 是具有 2-5 个碳原子的亚烷基
烷基是具有 1-6 个碳原子的亚烷基;
R1 是氢或可形成在体内可水解的酯的基团;以及 n 是 0 或 1。
US4614737A
申请人:——
公开号:US4614737A
公开(公告)日:1986-09-30
Tosylated glycerol carbonate, a versatile bis-electrophile to access new functionalized glycidol derivatives
作者:Jolanta Rousseau、Cyril Rousseau、Benita Lynikaite˙、Algirdas Šačkus、Claudia de Leon、Patrick Rollin、Arnaud Tatibouët
DOI:10.1016/j.tet.2009.07.095
日期:2009.10
The reactivity of tosylated glycerol carbonate 2 toward nucleophiles has been exploited to generate glycidol analogues protected with carbonate or carbamate groups. The activated glycerol 2 is a reasonable linking agent with thiol and alcohol nucleophiles and an excellent and selective one with primary amines, allowing efficient bis-functionalizations of glycerol. (C) 2009 Elsevier Ltd. All rights reserved.