Methylpiperitol, sitosterol, skimmianine, afzelin and quercitrin were
isolated from the leaves of Zanthoxylum culantrillo, while the stem ba
rk yielded (+)-methylpiperitol, sitosterol, lupeol, (+)-sesamin and th
e new tetrahydrofuran lignan ethoxy-3',4'-methylenedioxy-7,9'-epoxylig
nan-9-ol. Their structures were elucidated by NMR, including 2D techni
ques and comparison with authentic samples. (C) 1998 Elsevier Science
Ltd. All rights reserved.