Coupling reactions of indole-3-acetic acid derivatives. Synthesis of arcyriaflavin A
作者:Jan Bergman、Eva Koch、Benjamin Pelcman
DOI:10.1039/b004029k
日期:——
The bisindolesuccinic acid methyl ester 10 was obtained by an iodine-promoted coupling of the dianion 9. The diester was converted to the N-benzylimide 12, which was oxidatively cyclized to the indolo[2,3-a]pyrrolo[3,4-c]carbazole 15. The diester 10 could be directly transformed to the known indolocarbazole diester 27via acid-induced intramolecular cyclization in TFA. The same methodology gave arcyriaflavin A 4 from the succinimide 18b.
Coupling of indoleacetic acid trianion or methyl indoleacetic acid dianion. A biomimetic approach to indolocarbazole alkaloids.
作者:J. Bergman、B. Pelcman
DOI:10.1016/s0040-4039(00)96533-x
日期:1987.1
obtained as a mixture of diastereomers by iodine promoted coupling of the dianion or via the trianion . The diester was converted to the N-benzylimide which was oxidatively cyclized to the indolo[2,3-a]pyrrolo[3,4-c]carbazole compound .