Kumar A, Khare A, Khare N K
Department of Chemistry, Lucknow University, India.
Phytochemistry. 1999 Apr;50(8):1353-7. doi: 10.1016/s0031-9422(98)00691-8.
Phytochemical analysis of dried twigs of Marsdenia roylei (family Asclepiadaceae) has resulted in the isolation of a trisaccharide, maryal, and a diglycoside, rolinose. Their structures were determined as O-beta-D-oleandropyranosyl-(1-->4)-O-beta-D-digitoxopyranosyl++ +-(1-->4)-D- cymaral and ethyl O-beta-D-oleandropyranosyl-(1-->4)-O-3-O-methyl-6-deoxy-beta-D- allopyranoside, respectively, by chemical degradation and spectroscopic methods.
对萝藦科牛奶菜干燥嫩枝进行的植物化学分析，已分离出一种三糖——玛丽醇，以及一种二糖苷——罗利糖。通过化学降解和光谱法，分别确定它们的结构为O-β-D-夹竹桃吡喃糖基-(1→4)-O-β-D-洋地黄毒糖吡喃糖基-(1→4)-D- cymaral和乙基O-β-D-夹竹桃吡喃糖基-(1→4)-O-3-O-甲基-6-脱氧-β-D-阿洛吡喃糖苷。
