Ripperger H, Porzel A
Institute of Plant Biochemistry, Halle (Saale), Germany.
Phytochemistry. 1997 Dec;46(7):1279-82.
In addition to khasianine, solamargine, xylosylsolamargine and solasonine, three steroidal alkaloid glycosides, solasuaveoline, dihydrosolasuaveoline and isosolasuaveoline, have been isolated from aerial parts of Solanum suaveolens. The structures have been assigned by NMR investigations as (25R)-3 beta-{O-beta-D-glucopyranosyl-(1-->2)-O-beta-D- glucopyranosyl-(1-->4)-[O-alpha-L-rhamnopyranosyl-(1-->2)]-beta-D- galactopyranosyloxy}-22 alpha N-spirosol-5-ene, (25R)-3 beta-{O-beta-D-glucopyranosyl-(1-->2)-O- beta-D-glucopyranosyl-(1-->4)-[O-alpha-L-rhamnopyranosyl-(1-->2)]-beta-D - galactopyranosyloxy}-5 alpha, 22 alpha N-spirosolane and (25R)-3 beta-{O-beta-D-glucopyranosyl-(1-->6)-O- beta-D-glucopyranosyl-(1-->3)-[O-alpha-L-rhamnopyranosyl-(1-->2)]-beta-D - galactopyranosyloxy}-22 alpha N-spirosol-5-ene, respectively.
除了克萨胺碱、茄解碱、木糖基茄解碱和茄次碱这四种甾体生物碱苷外，还从野茄的地上部分分离出了三种甾体生物碱苷，即澳洲茄边碱、二氢澳洲茄边碱和异澳洲茄边碱。通过核磁共振研究确定其结构分别为(25R)-3β-{O-β-D-吡喃葡萄糖基-(1→2)-O-β-D-吡喃葡萄糖基-(1→4)-[O-α-L-吡喃鼠李糖基-(1→2)]-β-D-吡喃半乳糖氧基}-22αN-螺旋甾-5-烯、(25R)-3β-{O-β-D-吡喃葡萄糖基-(1→2)-O-β-D-吡喃葡萄糖基-(1→4)-[O-α-L-吡喃鼠李糖基-(1→2)]-β-D-吡喃半乳糖氧基}-5α,22αN-螺旋甾烷和(25R)-3β-{O-β-D-吡喃葡萄糖基-(1→6)-O-β-D-吡喃葡萄糖基-(1→3)-[O-α-L-吡喃鼠李糖基-(1→2)]-β-D-吡喃半乳糖氧基}-22αN-螺旋甾-5-烯。
