Abstract:

Two new terpenoids, namely taiwaniatriol (1) and senecrassidiol-9-O-b-D-glucopyranoside (8), along with fifteen known compounds including five triterpenoids (2-6), one diterpene (7) and nine phenols (9-17), were isolated from the root bark of Taiwania flousiana Gaussen. Taiwaniatriol was elucidated as (24S)-3b-methoxy-5a-lanost-9(11)-ene-7b, 24, 25-triol. Their structures were established mainly by spectral methods.

Key words: Taiwania flousiana, Taxodiaceae, triterpenoids, sesquiterpene glycoside, phenols