New Glycosides of the Fungus <i>Acremonium </i><i>s</i><i>triatisporum </i>Isolated from a Sea Cucumber
作者:Shamil Sh. Afiyatullov、Anatoly I. Kalinovsky、Tatyana A. Kuznetsova、Mikhail V. Pivkin、Nina G. Prokof'eva、Pavel S. Dmitrenok、George B. Elyakov
DOI:10.1021/np0305324
日期:2004.6.1
Four new diterpene glycosides, virescenosides R (1), S (2), T (3), and U (4), have been isolated from a marine strain of Acremonium striatisporum KMM 4401 associated with the holothurian Eupentacta fraudatrix. Their structures have been elucidated on the basis of HRFABMS, 1D and 2D NMR (1H, 13C, DEPT, COSY-45, COSY-RCT, HSQC, HMBC, and NOESY spectra), and the results of acidic hydrolysis as 19-O-[
四种新的二萜糖苷,即virescenosides R(1),S(2),T(3)和U(4),已从与整株猪戊草假单胞菌相关的海生顶头孢霉(Acremonium striatisporum)KMM 4401分离得到。根据HRFABMS,1D和2D NMR(1H,13C,DEPT,COSY-45,COSY-RCT,HSQC,HMBC和NOESY光谱)以及酸性水解的结果19-O- [β-D-吡喃葡萄糖基(1-> 6)-β-d-吡喃二糖基]-异哌丸-7,15-二烯-2α,3β-二醇(1),19-O-β-D-吡喃二糖基-3 -oxo-isopimara-8(14),15-diene-7alpha-ol(2),19-O-β-D-altropyranosyl-3,7-dioxo-isopimara-8,15-diene(3)和19 -O-beta-D-altropyranosyl-3,7-dioxo-iso