%0 Journal Article
%T Philinopgenin A, B, and C, Three New Triterpenoid Aglycones from the Sea Cucumber Pentacta quadrangulasis
%A Shi-Long Zhang
%A Ling Li
%A Yang-Hua Yi
%A Zheng-Rong Zou
%A Peng Sun
%J Marine Drugs
%D 2004
%I MDPI AG
%R 10.3390/md204185
%X Three new triterpenoid aglycones named Philinopgenin A (1), B (2), and C (3) were isolated from the acid hydrolysate of the crude glycoside mixture prepared from the whole sea cucumber Pentacta quadrangulasis Lesson. The corresponding structures were determined as 16¦Â-acetoxyholosta-8(9), 24(25)-diene-3¦Â-ol (1), 20, 25-epoxy-lanosta-9(11)-ene-3¦Â-ol 18(16)¨Clactone (2) and 16¦Â-acetoxyholosta-9(11), 24(25)-diene-3¦Â-ol (3), respectively, on the basis of spectral evidence.
%K Pentacta quadrangulasis Lesson
%K Philinopgenin A
%K Philinopgenin B
%K Philinopgenin C
%K triterpenoid aglycone
%U http://www.mdpi.com/1660-3397/2/4/185