Synthesis of two analogues of brassinolide, possible plant growth promoting steroids

Citation
P. Allevi et al., Synthesis of two analogues of brassinolide, possible plant growth promoting steroids, TETRAHEDRON, 55(13), 1999, pp. 4167-4176
Citations number
31
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON
ISSN journal
00404020 → ACNP
Volume
55
Issue
13
Year of publication
1999
Pages
4167 - 4176
Database
ISI
SICI code
0040-4020(19990326)55:13<4167:SOTAOB>2.0.ZU;2-Y
Abstract
The synthesis of two isomeric brassinosteroids, analogues of brassinolide, containing the 2 beta,3 beta diol system typical of ecdysteroids and a five -membered lactone bonded to the steroid ring B is described. The synthesis leads to both lactones via a metal hydride reduction of the Diels-Alder add uct of ergosterol. (C) 1999 Elsevier Science Ltd. All rights reserved.