葛根中的齐墩果烷型三萜糖苷。IV. 野葛中的六种新皂苷。
Oleanene-type triterpene glycosides from puerariae radix. IV. Six new saponins from Pueraria lobata.
作者信息
Arao T, Kinjo J, Nohara T, Isobe R
机构信息
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
出版信息
Chem Pharm Bull (Tokyo). 1997 Feb;45(2):362-6. doi: 10.1248/cpb.45.362.
From Puerariae Radix, the root of Pueraria lobata (Leguminosae), six new oleanene-type triterpene glycosides, called kudzusaponins A1 (1), A2 (2), Ar (3), SA4 (5), and SB1 (6) were isolated together with kudzusaponin A3 (7), soyasaponins SA3 (8), and I (9). The structures of 1-6 were determined to be 3-O-alpha-L-rhamnopyranosyl- (1-->2)-beta-D-arabinopyranosyl-(1-->2)beta-D-glucuronopyranosy l kudzusapogenol A 22-O-beta-D-xylopyranoside, 3-O-beta- D-galactopyranosyl-(1-->2)-beta-D-glucuronopyranosyl kudzusapogenol A, 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl kudzusapogenol A, 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta- D-glucoronopyranosyl kudzusapogenol A, 3-O-beta-D-glucuronopyranosyl[(1-->2)-beta-D-glucuronopyranosyl soyasapogenol A22-O-alpha-L-arabinopyranoside,and 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-galactopyranosyl- (1-->2)-beta- D-glucuronopyranosyl (beta-fabatriosyl) soyasapogenol B 22-O-alpha-L-arabinopyranoside, respectively.
从豆科植物野葛的根葛根中，分离出6种新的齐墩果烷型三萜糖苷，即葛根皂苷A1（1）、A2（2）、Ar（3）、SA4（5）和SB1（6），同时还分离出葛根皂苷A3（7）、大豆皂苷SA3（8）和I（9）。1 - 6的结构分别确定为3 - O - α - L - 鼠李吡喃糖基 -（1→2）- β - D - 阿拉伯吡喃糖基 -（1→2）β - D - 葡萄糖醛酸吡喃糖基葛根皂醇A 22 - O - β - D - 木糖吡喃糖苷、3 - O - β - D - 吡喃半乳糖基 -（1→2）- β - D - 葡萄糖醛酸吡喃糖基葛根皂醇A、3 - O - β - D - 吡喃葡萄糖基 -（1→2）- β - D - 葡萄糖醛酸吡喃糖基葛根皂醇A、3 - O - α - L - 鼠李吡喃糖基 -（1→2）- β - D - 吡喃葡萄糖基 -（1→2）- β - D - 葡萄糖醛酸吡喃糖基葛根皂醇A、3 - O - β - D - 葡萄糖醛酸吡喃糖基[（1→2）- β - D - 葡萄糖醛酸吡喃糖基大豆皂醇A 22 - O - α - L - 阿拉伯吡喃糖苷，以及3 - O - α - L - 鼠李吡喃糖基 -（1→2）- β - D - 吡喃半乳糖基 -（1→2）- β - D - 葡萄糖醛酸吡喃糖基（β - 法布里糖基）大豆皂醇B 22 - O - α - L - 阿拉伯吡喃糖苷。
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