An efficient route to the pyrrolizidine ring system via an N-acyl anion cyclisation process
作者:Anthony Murray、George R. Proctor、P.John Murray
DOI:10.1016/0040-4020(96)00049-x
日期:1996.3
An enantioselective route to the pyrrolizidineringsystem has been developed which uses an N-acyl anion cyclisation reaction as the key step. This methodology has provided the natural pyrrolizidines (−)-(1R, 8S)-1-hydroxy-pyrrolizidine 7, (−)-pyrrolizidin-1-ene-3-one 9 and (±)-trachelanthamidine 14. Extension of the process to an N-propionyl substrate provides ready access to a series of 2-methyl
SHONO, TATSUYA;KISE, NAOKI;TANABE, TAKAYOSHI, J. ORG. CHEM., 53,(1988) N 7, 1364-1367
作者:SHONO, TATSUYA、KISE, NAOKI、TANABE, TAKAYOSHI
DOI:——
日期:——
Electroorganic chemistry. 100. A new stereoselective method of synthesis of pyrrolizidines and indolizidines
作者:Tatsuya Shono、Naoki Kise、Takayoshi Tanabe
DOI:10.1021/jo00242a004
日期:1988.4
An asymmetric approach to the pyrrolizidine ring system via N-acetyl and N-propionyl anion cyclisation processes
作者:Anthony Murray、George R. Proctor、P.John Murray
DOI:10.1016/0040-4039(94)02233-2
日期:1995.1
An efficient route to the pyrrolizidineringsystem has been developed. The method, which uses N-acetyl and N-propionyl anion cyclisation reactions as the key steps has provided the natural pyrrolizidines (−)-(1R, 8S)-1-hydroxy-pyrrolizidine (10), (−)-pyrrolizidin-1-ene-3-one (13), (±)-trachelanthamidine (18) together with a range of 2-methyl substituted pyrrolizidine-3-ones.