Secoiridoid Glucosides Esterified with a Phenolic Glucoside from Alstonia macrophylla
作者:Takao Tanahashi、Atsuko Itoh、Eri Kawaguchi、Sayo Nishio、Kaori Tani、Misaki Uchigaki、Marina Nakamura、Toru Akita、Toyoyuki Nishi
DOI:10.3987/com-21-14421
日期:——
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.
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。