Triterpenoids from the Roots of Camellia oleifera C. Abel and Their Cytotoxic Activities.

Wang, Shou-Li; Chen, Zhong; Tong, Xiao-Jing; Liu, Yan-Li; Li, Xia; Xu, Qiong-Ming; Li, Xiao-Ran; Yang, Shi-Lin

Three new triterpenoids, 21 β,22 α-diangeloyloxy-3 β,15 α,16 α,28-tetrahydroxyolean-12-en-23-al ( 1), 21 β-angeloyloxy-3 β,15 α,16 α,28-tetrahydroxy-22 α-(2-methylbutanoyloxy)olean-12-en-23-al ( 2), and 21 β-angeloyloxy-3 β,16 α,28-trihydroxy-22 α-(2-methylbutanoyloxy)olean-12-en-23-al ( 3), along with six known triterpenoids, were isolated from the roots of Camellia oleifera C. Abel. The structures of compounds 1- 3 were elucidated on the basis of spectroscopic analyses. Moreover, all compounds isolated were evaluated for their cytotoxic activities by MTT (=3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2 H-tetrazolium bromide) assay.

TRITERPENOIDS; CAMELLIA oleifera; BROMIDES; SPECTRUM analysis; TETRAZOLIUM

Helvetica Chimica Acta, 2013, Vol 96, Issue 6, p1126

0018-019X

Academic Journal

10.1002/hlca.201200333