Eleven novel secoiridoid glucosides, O-methylfrachinoside (1) and alstomacrosides A–J (2–11) were isolated, together with seventeen known compounds, from the dried twigs of Alstonia macrophylla. The structures of the new compounds were established on the basis of 1D and 2D NMR spectroscopic data. These compounds were commonly characterized as esters of secoxyloganin with a phenolic glucoside.

中文翻译：

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用从中提取的酚类葡糖苷酯化的类脂异果糖苷

十一新颖secoiridoid糖苷，Ô -methylfrachinoside（1 ）和alstomacrosides甲-J（2 - 11 ）进行分离，用17种已知的化合物，从干燥的嫩枝一起大叶糖胶树。新化合物的结构是根据1D和2D NMR光谱数据确定的。这些化合物通常被表征为secoxyloganin与酚醛葡萄糖苷的酯。