Cyclic Polyketide Peroxides and Acyclic Diol Analogues from the Sponge <i>Plakortis lita</i>
作者:Blaine Harrison、Phillip Crews
DOI:10.1021/np980093m
日期:1998.8.1
didehydroplakortide Z (5)-and three acyclic diol analogues-ethyl seco-plakortide Z (6), epi-ethyl seco-plakortide Z (7), and ethyl didehydro-seco-plakortide Z (8). The absolute stereochemistry at the three chiral sites of 3 was assigned by preparing 6, which was investigated using the refined Mosher's method. Compounds 4, 5, and 6 were also concluded to have the same absolute stereochemistry as 3. The cyclic peroxides