Studies on the constituents of the bark of Kalopanax pictus Nakai.
作者:Kazuko SANO、Shuichi SANADA、Yoshiteru IDA、Junzo SHOJI
DOI:10.1248/cpb.39.865
日期:——
Five new compounds, kalopanaxsaponin G (2) and kalopanaxins A (6), B (8), C (11) and D (13), were isolated from the bark of Kalopanax pictus together with nine known compounds, kalopanaxsaponins A (1) and B (5), pericarpsaponin PJ3 (3), hederasaponin B (4), syringin (7), protocatechuic acid (9), coniferin (10), liriodendrin (=dl-syringaresinol di-O-glucopyranoside) (12), glucosyringic acid (14) and chlorogenic acid (15). The structures of the new compounds were characterized as hederagenin 28-O-α-L-rhamnopyranosyl(1→4)-β-glucopyranosyl(1→6)-β-D-glucopyranoside (2), ferulyldehyde (=coniferylaldehyde) 4-O-β-D-glucopyranoside (6), coniferin 6'-O-(4-O-α-L-rhamnopyranosyl)-syringate (8), 2-methoxyhydroquinone 4-O-[6-O-(4-O-α-L-rhamnopyranosyl)-syringyl]-β-D-glucopyranoside (11) and coniferyl alcohol 4-O-β-D-apiofuranosyl(1→2)-β-D-glucopyranoside (=coniferin 2'-O-β-D-apiofuranoside) (13).
从象拔蚌树皮中分离出五种新化合物,即象拔蚌皂苷 G (2)、象拔蚌皂苷 A (6)、B (8)、C (11) 和 D (13),以及九种已知化合物,即象拔蚌皂苷 A (1)和 B (5)、皂苷 PJ3 (3)、皂苷 B (4)、丁香苷 (7)、原儿茶酸 (9)、针叶苷 (10)、鹅掌楸苷 (=dl-syringaresinol di-O-glucopyranoside) (12)、葡萄糖苷酸 (14) 和绿原酸 (15)。新化合物的结构特征为:hederagenin 28-O-α-L-rhamnopyranosyl(1→4)-β-glucopyranosyl(1→6)-β-D-glucopyranoside (2)、ferulyldehyde (=coniferylaldehyde) 4-O-β-D-glucopyranoside (6)、6'-O-(4-O-α-L-rhamnopyranosyl)-syringate coniferin (8)、2-甲氧基氢醌 4-O-[6-O-(4-O-α-L-吡喃鼠李糖基)-syringyl]-β-D-吡喃葡萄糖苷 (11) 和针叶醇 4-O-β-D-apiofuranosyl(1→2)-β-D-glucopyranoside (=coniferin 2'-O-β-D-apiofuranoside) (13)。