Chemical Constituents from Walsura yunnanensis

A new compound walsurol (1), along with known compounds, tocopherol (2), sitoindoside I (3), 3(3 - stigmast -5-en-3-yl-[3-D- xylopyranoside (4), stigmast - 4 - en - 6(3 - ol - 3 - one (5), 7 - oxositosterol (6), 3(3 - hydroxy - 5a, 8a - epidioxyergosta - 6, 22 - diene (7), ( - ) epicatechin (8), and 3,5- dihydroxy - 4 - methoxylphenylethanol (9), were isolated from the EtOH extract from the bark of Walsura yunnanensis C. Y. Wu. Their structures were identified on the basis of spectral methods.