M. Gavagnin et al., Austrodorin-A and -B: first tricyclic diterpenoid 2 '-monoglyceryl esters from an Antarctic nudibranch, TETRAHEDR L, 40(48), 1999, pp. 8471-8475
Two novel diterpenoid 2'-monoglyceryl esters, austrodorin-A (7) and austrod
orin-B (8), which contain the isocopalane skeleton with an uncommon oxygena
ted substitution pattern, have been isolated from the skin of the Antarctic
nudibranch Austrodoris kerguelenensis. Structures and relative stereochemi
stries have been established by NMR methods, whereas the absolute configura
tion was suggested by comparison of their CD profiles with those of model c
ompounds. (C) 1999 Elsevier Science Ltd. All rights reserved.