77394-11-7Relevant articles and documents
Marine Natural Products. XVIII. Four Lanostane-Type Triterpene Oligoglycosides, Bivittosides A, B, C, and D, from the Okinawan Sea Cucumber Bohadschia bivittata MITSUKURI
Kitagawa, Isao,Kobayashi, Motomasa,Hori, Manabu,Kyogoku, Yoshimasa
, p. 61 - 67 (2007/10/02)
A full account of the structure elucidation of four lanostane-type triterpene oligoglycosides, bivittosides A (6), B (8), C (9), and D (10), is presented.Bivittosides were isolated from body-walls and Cuvierian tubules of the Okinawan sea cucumber Bohadschia bivittata MITSUKURI, and among these four oligoglycosides, bivittoside D (10) showed significant antifungal activities.Acidic hydrolysis of bivittosides A (6), B (8), and D (10) provided three artifact sapogenols, among which a homoannular-dienic sapogenol named preseychellogenin (4), exhibiting characteristically red-shifted ultraviolet and circular dichroism spectra, was identified as the monoacetate (4a).Keywords: sea cucumber; Bohadschia bivittata; bivittoside; lanostane-type triterpene oligoglycoside; homoannular-diene strained; oligoglycoside 13C-NMR; oligoglycoside T1; Turbo cornutus glycosidase; deoxybivittogenin; preseychellogenin