Eleven new briarane-type diterpene lactones, designated milolides (1-8, 10-
12), together with four known diterpene lactones (9, 13-15), were isolated
from the Micronesian octocoral Briareum stechei collected at Yap, Federated
States of Micronesia. One aspect of the stereochemistry of one of the know
n compounds, solenolide C (9), is revised. Structures of the new compounds
were determined from spectral data.