Alstonic acids A and B, unusual 2,3-secofernane triterpenoids from Alstonia scholaris

作者：Wang Fei; Ren Fu Cai; Liu Ji Kai^*

来源：Phytochemistry, 2009, 70(5): 650-654.

DOI：10.1016/j.phytochem.2009.03.007

• Alstonia scholaris
• Apocynaceae
• 2,3-Secofernane triterpenoids
• Indole alkaloids
• Alstonic acids A and B
• X-ray diffraction analysis

2,3-Secofernane triterpenoids, alstonic acids A (1) and B (2), were isolated from the leaves of Alstonia scholaris together with an indole alkaloid, N(1)-methoxymethyl picrinine (3). Their structures were established from MS and NMR spectroscopic analyses and confirmed by single crystal X-ray diffraction analysis.

• 出版日期2009-3
• 单位中国科学院昆明植物研究所