石莼的化学成分研究(Ⅱ)

Chemical constituents of Ulva lactuca L.

目的研究绿藻石莼的化学成分。方法利用硅胶柱色谱、凝胶柱色谱、HPLC等方法进行分离纯化,并根据理化性质和波谱数据鉴定结构。结果从石莼中分离得到8个化合物,分别鉴定为3,6-二甲基-2,5-哌嗪二酮(1)、吡咯并哌嗪-2,5-二酮(2)、3-异丙基-6-甲基-2,5-哌嗪二酮(3)、邻苯二甲酸二丁酯(4)、邻苯二甲酸二(2-乙基-己基)酯(5)、单棕榈酸甘油酯(6)、苯丙氨酸(7)、亮氨酸(8)。结论所有化合物均从石莼中首次分离得到。

Aim To study the chemical constituents of Ulva lactuca L. ted by the chromatography methods and identified tained and identified as 3, 6-dimethylpiperazine-2, 5 spectral analysi one（ 1 ）, pyrrolo Methods The compounds were isolas. Results Eight compounds were ob- piperazine-2, 5-dione（2）, 3-isopropyl- 6-methylpiperazine-2, 5-dione（3）, dibutyl phthalate （4）, phthalic acid bis- （2-ethylhex monopalmitate（6）, phenylalanine（7）, leucine（8）. Conclusion All the compounds were lactuca L. for the first time. yl） ob ester （ 5 ）, glycerol tained from Ulva