运用多种方法对木瓣树（Xylopia vielana Pierre）枝叶甲醇提取物的化学成分进行分离和鉴定。结果显示：共分离鉴定出12个化合物，分别为vielaninor N（1）、xylopidimer D（2）、（-）-4β,10β-香木兰烷二醇（3）、（-）-4α,10α-香木兰烷二醇（4）、4β,10α-香木兰烷二醇（5）、（+）-松脂素（6）、原儿茶酸（7）、尿嘧啶（8）、（3S,5R,6S,7E,9R）-3,6-二羟基-5,6-二氢-β-紫罗兰醇（9）、（1R,4S,10R）-10,11-二甲基-二环己烷-5（6）-烯-1,4-二醇-7-酮（10）、3-羟基-1-（4-羟基-3,5-二甲氧基苯基）-1-丙酮（11）、2,4-二羰基六氢-1,3-二氮杂（12）。其中，化合物10和11首次从番荔枝科（Annonaceae）分离获得，化合物6、9和12首次从木瓣树属（Xylopia Linn.）分离获得。

The chemical constituents of methanol extracts from branches and leaves of Xylopia vielana Pierre were isolated and identified by various methods. The results show that a total of twelve compounds are isolated and identified, namely vielaninor N (1), xylopidimer D (2), (-)-4β,10β-aromadendranediol (3), (-)-4α,10α-alloaromadendranediol (4), 4β,10α-aromadendranediol (5), (+)-pinoresinol (6), protocatechuic acid (7), uracil (8), (3S,5R,6S,7E,9R)-3,6-dihydroxy-5,6-dihydro-β-ionol (9), (1R,4S,10R)-10,11-dimethyl-dicyclohex-5(6)-en-1,4-diol-7-one (10), 3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (11), 2,4-dicarbonyl hexahydro-1,3-diazepine (12). Among which, compound 10 and 11 are isolated from Annonaceae for the first time, and compound 6, 9 and 12 are isolated from Xylopia Linn. for the first time.