Elaboration of the ethylidene side chain in the synthesis of indole alkaloids: preparation of (+/-)-deplancheine and its analogues.
A new method of elaborating the ethylidene side chain in the synthesis of (+/-)-deplancheine ( 1) and its analogues is described.
Jokela
R
R
Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150 Espoo, Finland.
Juntunen
A
A
Lounasmaa
M
M