Saponins of pericarps of Chinese Sapindus delavayi (Pyi-shiau-tzu), a source of natural surfactants.
作者:KEISO NAKAYAMA、HIROKO FUJINO (nee KIMATA)、RYOJI KASAI、OSAMU TANAKA、JUN ZHOU
DOI:10.1248/cpb.34.2209
日期:——
From pericarps of Sapindus delavayi (Chinese name : Pyi-shiau-tzu, Japanese name : Hishoushi)collected in Yunnan, China, several monodesmosides, 2-4 and 8-10 were isolated, all of which have already been isolated from pericarps of S. mukurossi (Japanese name : Enmeihi). Besides these known saponins, Sapenins 11 (a new saponin named hishoushi-saponin A), 13 and 14 (a new saponin named hishoushi-saponin Ee) were isolated from Pyi-shiau-tzu and their structures were elucidated to be as follows : 11, oleanolic acid 3-O-α-L-arabinopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside; 13, oleanolic acid 3-0-β-D-xylopyranesyl-(1→3)-x-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside (identica with the prosapogenin of the saponins from Clematis chinensis); 14, an acetate of sapindoside B (3) in which the acetyl group is located at the 3-hydroxyl group of the terminal xylosyl unit. It was found that the content of acylated saponins such as 14 in Pyi-shiau-tzu is higher than that in Enmeihi. Two diacetylated saponins, 15 and 16, were isolated from Pyi-shiau-tzu not in an impure state and their structures were deduced by nuclear magnetic reonance spectrometry. It is noteworthy that in contrast to Enmeihi, no bisdesmoside was detected in Pyi-shiau-tzu.
从中国云南采集的无患子(中文名:Pyi-shiau-tzu,日文名:Hishoushi)的果皮中,分离到几种单链苷,2-4和8-10,这些单链苷均已从无患子果皮中分离出来。 .mukurossi(日文名:Enmeihi)。除了这些已知的皂苷外,从 Pyi-shiau-tzu 中分离出 Sapenins 11(一种新皂苷,名为 hishoushi-saponin A)、13 和 14(一种新皂苷,名为 hishoushi-saponin Ee),其结构阐明如下: 11 ,齐墩果酸3-O-α-L-阿拉伯吡喃糖基-(1→3)-α-L-吡喃鼠李糖基-(1→2)-α-L-阿拉伯吡喃糖苷; 13、齐墩果酸3-0-β-D-木吡喃基-(1→3)-x-L-吡喃鼠李糖基-(1→2)-α-L-吡喃阿拉伯糖苷(与铁线莲皂苷的原皂苷元相同); 14,无患子苷B(3)的乙酸酯,其中乙酰基位于末端木糖基单元的3-羟基上。结果发现,比消子中14等酰化皂苷的含量高于延美黑。两种二乙酰化皂苷15和16是从Pyi-shiau-tzu中分离出来的,不是不纯的,并且通过核磁共振波谱法推导了它们的结构。值得注意的是,与 Enmeihi 相比,Pyi-shiau-tzu 中没有检测到双链苷。