Secondary metabolites of the coelenterate echinopora lamellosa

Abstract
The marine coelenterate Echinopora lamellosa (class Anthozoa, family Scleractinidae) was found to contain a number of unprecedented secondary metabolites which were isolated and identified as smilagenin (I), neodunol methyl ether (II), glycyrrhetic acid (III), 3β‐acetoxyglycyrrhetic acid (IV), and 3β‐acetoxy‐11‐deoxoglycyrrhetic acid (V). The structure of neodunol methyl ether was confirmed and its absolute configuration determined by the x‐ray diffraction method.