A New Triterpene Glycoside from the Sea Cucumber <i>Holothuria Scabra</i> Collected in Vietnam
Nguyen Van Thanh
Nguyen Hai Dang
Phan Van Kiem
Nguyen Xuan Cuong
Hoang Thanh Huong
Chau Van Minh
Abstract
Bioassay guided fractionation led to the isolation of a new triterpene glycoside, holothurinogenin B (1) along with three known compounds, holothurin B (2), holothurin A (3), and holothurin A2 (4), from the methanol extract of the Vietnamese sea cucumber Holothuria scabra. Their structures were deduced from the spectral analysis (1D-NMR, 2D-NMR, MS) and chemical evidences.
Keywords: Triterpene glycosides, Sea cucumber, Holothuria scabra, Holothurinogenin B.
AJSTD Vol. 23 Issue 4 pp. 253-260 (2006)
