Steroidal glycosides and aromatic compounds from Smilax riparia.
Steroidal glycosides and aromatic compounds from Smilax riparia.
复制标题
DOI：
10.1248/cpb.54.1451
复制
发表时间：
2006-10
影响因子：
1.7
通讯作者：
Jun Li;Xiaoli Bi;G. Zheng;Yoshimitsu Hitoshi;T. Ikeda;T. Nohara
中科院分区：
文献类型：
--
作者：
Jun Li;Xiaoli Bi;G. Zheng;Yoshimitsu Hitoshi;T. Ikeda;T. Nohara
从川楝子（Smilax riparia A）根茎和根的乙醇提取物中分离得到两个新的甾体苷类化合物，分别命名为川楝苷A（1）和B（2），两个芳香族化合物（3，4），以及四个已知的黄酮类衍生物。DC. Riparoside A（1）的结构为3-O-α-L-吡喃鼠李糖基-（1->2）-[α-L-吡喃鼠李糖基-（1->6）]-β-D-吡喃葡萄糖基3 β，20 α-二羟基-5 α-呋喃甾-22（23）-烯-26-O-β-D-吡喃葡萄糖苷。Riparoside B（2）的特征为3-O-α-L-吡喃鼠李糖基-（1->2）-[α-L-吡喃鼠李糖基-（1->6）]-β-D-吡喃葡萄糖基3 β，16 β-二羟基-5 α-葡聚糖-20-酮16-O-[5-O-β-D-吡喃葡萄糖基5-羟基-4-甲基-戊酸]-酯26-O-β-D-吡喃葡萄糖苷。化合物3和4分别鉴定为阿魏酸蔗糖酯和7-O-甲基-10-氧百里酚龙胆双糖苷。
Two new steroidal glycosides named riparosides A (1) and B (2), and two aromatic compounds (3, 4), together with four known flavonoid derivatives have been isolated from the EtOH extract of the rhizomes and roots of Smilax riparia A. DC. The structure of riparoside A (1) was determined to be 3-O-alpha-L-rhamnopyranosyl-(1-->2)-[alpha-L-rhamnopyranosyl-(1-->6)]-beta-D-glucopyranosyl 3beta,20alpha-dihydroxy-5alpha-furost-22(23)-ene 26-O-beta-D-glucopyranoside. Riparoside B (2) was characterized as 3-O-alpha-L-rhamnopyranosyl-(1-->2)-[alpha-L-rhamnopyranosyl-(1-->6)]-beta-D-glucopyranosyl 3beta,16beta-dihydroxy-5alpha-pregnan-20-one 16-O-[5-O-beta-D-glucopyranosyl 5-hydroxy-4-methyl-pentanoic acid]-ester 26-O-beta-D-glucopyranoside. Compounds 3 and 4 were elucidated as a sucrosyl ferulic acid ester and 7-O-methyl-10-oxythymol gentiobioside, respectively.