A NEW ALKALOID FROM Lysimachia patungensis

摘要

A new pyridine alkaloid and six known compounds were isolated from the whole plant of Lysimachia patungensis Hand.-Mazz.The structure of the new alkaloid,named patungensin,was characterized as (17R,E)-2-hydroxy-4,6-dimethoxy-17-acetoxy-cyclopentadeca-1,3-diene[1,2-b]pyridine,and the six known compounds were identified as octacosanoic acid (1),palmic acid (2),stigmasterol (3),ardisiacrispin A (5),isorhamnetin 3-beta-D-galactopyranoside (6),and isorhamnetin 3-robinobioside (7),respectively.