Heterocycles p. 943 - 946 (1993)
Update date:2022-08-05
Topics:
Kitahara, Yoshiyasu
Nakahara, Shinsuke
Yonezawa, Takanobu
Nagatsu, Masanori
Kubo, Akinori
A pentacyclic aromatic alkaloid, kuanoniamine A (5) was synthesized from 6-methoxybenzothiazole-4,7-dione (7) and 2-aminoacetophenone (8).Similarly, 11-hydroxyascididemin (4) was prepared from 6-bromo-4-chloro-5,8-dimethoxyquinoline (12).The structure of neocalliactine acetate, a derivative of calliactine, was determined as 19 by total synthesis from 6-methoxy-5,8-quinolinedione (23) and 2-amino-5-methoxyacetophenone (24).
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