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Expedient construction of the [5-6-7] tricyclic core of calyciphylline a-type alkaloids.

Authors :
Guo JJ
Li Y
Cheng B
Xu T
Tao C
Yang X
Zhang D
Yan G
Zhai H
Source :
Chemistry, an Asian journal [Chem Asian J] 2015 Apr; Vol. 10 (4), pp. 865-8. Date of Electronic Publication: 2014 Nov 05.
Publication Year :
2015

Abstract

An efficient synthetic route toward the highly congested [5-6-7] tricyclic core of calyciphylline A-type alkaloids has been developed. This approach features a highly efficient intramolecular Diels-Alder cycloaddition to establish the aza-five-membered C ring as well as the C1 all-carbon quaternary center, and a subsequent cyclopropanation together with a ring-expansion reaction of the resulted adduct to construct the seven-membered D ring.<br /> (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1861-471X
Volume :
10
Issue :
4
Database :
MEDLINE
Journal :
Chemistry, an Asian journal
Publication Type :
Academic Journal
Accession number :
25377776
Full Text :
https://doi.org/10.1002/asia.201403061