Malyngamides M and N from the Hawaiian Red Alga Gracilaria coronopifolia
Two new malyngamides, M and N (1, 2), were isolated along with malyngamide I acetate (3) from the Hawaiian red alga Gracilaria coronopifolia. Our results suggest that malyngamide N (2) is a revised structure of deacetoxystylocheilamide (5). The absolute configuration of malyngamide I acetate was deduced to be 3 using the reversed octant rule.
Kan
Y
Suntory Institute for Bioorganic Research, Wakayamadai, Shimamoto, Mishima-gun, Osaka 618, Japan, and John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii 96822.
Fujita
T
Nagai
H
Sakamoto
B
Hokama
Y