Acyclic stereoselection using 1,2-asymmetric induction. The first total synthesis of (+)-corynomycolic acid
作者:Yasunori Kitano、Yuichi Kobayashi、Fumie Sato
DOI:10.1039/c39850000498
日期:——
The first total synthesis of (+)-corynomycolic acid (1), which includes as the key step, diastereoselective reduction of the optically active carbonyl compounds (8) is described.
Synthesis, in vitro cytotoxicity and in vivo anti-inflammatory activity of long chain 3-amino-1,2-diols
作者:JoséM. Padrón、Victor S. Martin、Dimitra Hadjipavlou-Litina、Caterina Noula、Violetta Constantinou-Kokotou、Godefridus J. Peters、George Kokotos
DOI:10.1016/s0960-894x(99)00084-0
日期:1999.3
The synthesis of long chain 3-amino-1,2-diols was carried out based on Sharpless asymmetric epoxidation of long chain allylic alcohols and regioselective nucleophilic ring opening by azido group. The in vitro cytotoxicity of the compounds prepared was evaluated against six solid tumor cell lines (A2780, H322, LL, WiDr, C26-10, UMSCC-22B). Free 3-amino-1,2-diols exhibited IC50 values between 1.45 mu M and 32 mu M. These compound!; also presented interesting inhibition of carrageenin-induced paw edema in rats (85.3% 79.6% at a concentration of 0.15 mmol/kg). (C) 1999 Elsevier Science Ltd. All rights reserved.