Biologically Active Glycosides from Asteroidea, V. Steroid Oligoglycosides from the StarfishAsterias amurensis [cf.]versicolor Sladen, 1 Structural Elucidation of a New Oligoglycoside Sulfate
作者:Yoichi Itakura、Tetsuya Komori、Toshio Kawasaki
DOI:10.1002/jlac.198319831205
日期:1983.12.15
9(11)-en-20-one (1), 3β,6α,20ξ-trihydroxy-5α-cholest-9(11)-en-23-one (2), 3β,6α,20ξ-trihydroxy-24ξ-methyl-5α-cholest-9(11)-en-23-one (3) [isolated in the form of the diacetates 1′, 2′, and 3′ from the enzymatic hydrolyzate of an oligoglycoside mixture], and thornasteroside A (8) a new genuine oligoglycoside sulfate named versicoside A has been isolated and structurally elucidated by chemical and spectroscopic
除了已知的3β外,6α-dihydroxy-5α-pregn-9(11)-en-20-one(1),3β,6α,20ξ-trihydroxy-5α-cholest-9(11)-en-23 -一(2),3β,6α,20ξ-三羟基-24ξ-甲基-5α-胆甾9(11)-en-23-一(3)[以双乙酸酯1 ',2 '和从寡糖苷混合物的酶解产物3 '和荆棘苷A(8)中分离出一种新的真正的寡糖苷硫酸盐,即versicoside A,并通过化学和光谱学证据证明其为6α-[(O- β- D-半乳糖吡喃糖基-(13)-O -β-D-呋喃核糖基-(12)-O-β-D-吡喃并吡喃糖基- (14)-O- [β-D-吡喃并吡喃糖基-(12)]- O - β-D-吡喃并吡喃糖基- (13)-β-D-吡喃并吡喃糖基)氧基]-20ξ-羟基- 3β-(磺氧基)-5α-胆甾9(11)-en-23-ones(4)。