A new aristolactam alkaloid from the stems of Dasymaschalon trichophorum

试图学习混合物被各种各样的层析的方法孤立并且净化的 Dasymaschaon trichophorum Merr 方法的茎的化学成分。他们的结构根据分光镜的方法被阐明。结果五 aristolactam 碱被获得，他们的结构作为 10-amino-3,6-dihydroxy-2,4-dimethoxyphenanthrene-1-carboxylic 酸被识别酮(1 ) ， enterocarpam-II (2 ) ， oldhamactam (3 ) ， goniopedaline (4 ) ，和 stigmalactam (5 ) 分别地。结论化合物 1 是新 aristolactam 碱，当时混合物 25 第一次从这个类被报导。

AIM： To study the chemical constituents of the stem of Dasymaschaon trichophorum Merr.. METHODS： The com- pounds were isolated and purified by the methods of various chromatography. Their structures were elucidated on the basis of spectro- scopic methods. RESULTS： Five aristolactam alkaloids were obtained and their structures were identified as 10-amino-3,6-dihy- droxy-2,4-dimethoxyphenanthrene-l-carboxylic acid lactam （1）, enterocarpam-II （2）, oldhamactam （3）, goniopedaline （4）, and stig- malactarn （5）, respectively. CONCLUSION： Compound 1 is a new aristolactam alkaloid, while compounds 2-5 are reported from this genus for the first time.