Reding, Matthew T.; Kaburagi, Yosuke; Tokuyama, Hidetoshi, Heterocycles, 2002, vol. 56, # 1-2, p. 313 - 330
作者:Reding, Matthew T.、Kaburagi, Yosuke、Tokuyama, Hidetoshi、Fukuyama, Tohru
DOI:——
日期:——
Stereocontrolled Total Synthesis of (±)-Catharanthine via Radical-Mediated Indole Formation
作者:Matthew T. Reding、Tohru Fukuyama
DOI:10.1021/ol990749i
日期:1999.10.1
[GRAPHICS]A stereocontrolled total synthesis of (+/-)-catharanthine, 1, has been completed. The key step involves the radical-mediated cyclization of a highly functionalized intermediate to furnish the corresponding indole. The cyclization utilizes a simple phosphorus-based radical-reducing agent. This synthesis provides a potential route for the production of analogues of catharanthine and is more convergent and experimentally less complex than previous syntheses of 1.
SZANTAY, CSABA;BOLCSKEI, HEDVIG;GACS-BAITZ, ESZTER, TETRAHEDRON, 46,(1990) N, C. 1711-1732
The first synthesis of natural (+)-catharanthine (ulbar>1) has been achieved in a few steps and in ∼20 % overall yield based on indole-3--acetic acid. The isomeric (±)-allocatharanthine was also prepared.