Zm. Gu et al., NOVEL CYTOTOXIC ANNONACEOUS ACETOGENINS - (2,4-CIS AND TRANS)-BULLADECINONES FROM ANNONA-BULLATA (ANNONACEAE), Bioorganic & medicinal chemistry letters, 4(3), 1994, pp. 473-478
A mixture of two novel cytotoxic adjacent bis-tetrahydrofuran (THF) ke
tolactone acetogenins, (2,4-cis and trans)-bulladecinones (1 and 2), w
as isolated from the bark of Annona bullara Rich, (Annonaceae). Adjace
nt bis-THF rings, located at C-12 and C-16 and having only one adjacen
t hydroxyl group, and the presence of an erythro vicinal diol in 1 and
2 are new features for the Annonaceous acetogenins.