摘要
利用硅胶、Sephadex LH-20、反相、中压、高效液相制备等多种色谱法从霍山石斛Stagonosporopsis oculihominis内生真菌中分离得到17个化合物,分别为acetyl-L-isoleucine(1),N-(4-戊氧基)乙酰胺(2),Nb-乙酰基色胺(3),尿嘧啶(4),1H-indole-3-carboxylic acid(5),2-(1H-indol-3-yl)acetic acid(6),腺嘌呤核苷(7),环(L)-脯氨酸-(D)-亮氨酸(8),环(L)-脯氨酸-(L)-亮氨酸(9),环(L)-苯丙氨酸-(L)-亮氨酸(10),油酸(11),α-亚油酸脂油酸(12),8(E)-十六烯酸(13),亚麻酸(14),α-亚油酸脂(15),22E-7αmethoxy-5α,6α-epoxyergosta-8(14),22-dien-3β-ol(16),demethylincisterol(17)。所有化合物均首次从Stagonosporopsis oculihominis内生真菌中分离得到,其中化合物1为新天然产物。化合物2、16和17表现出一定的抗肿瘤活性,其中化合物17具有中等抗肿瘤活性,IC50值为39.2~53.2μM。
Seventeencompounds were isolated from the Et OAc extract of endophytic fungus Stagoosporopsis oculihominis in Dendrobium huoshanense by chromatography technology and their structures were identified as acetyl-L-isoleucine(1),N-(4-oxopentyl)acetamide(2),Nb-(2-(1 H-indol-3-yl) ethyl) acetamide(3),uracil(4),1 H-indole-3-carboxylic acid(5),2-( 1 H-indol-3-yl) acetic acid( 6),adenine nucleoside( 7),Cyclo-( L)-proline-( D)-leucine( 8),Cyclo-(L)-proline-(L)-leucine(9),Cyclo-(L)-phenylalanine-(L)-leucine(10),oleic acid(11),α-linoleic acid(12),8(E)-hexadecenoic acid(13),linolenic acid(14),α-linoleate(15),22 E-7αmethoxy-5α,6α – epoxyergosta-8(14),22-dien-3β-ol(16),demethylincisterol(17) on the basis of comprehensive spectroscopic analysis. All these compounds are isolated from Stagonosporopsis oculihominis for the first time,including that compound 1 was a new natural product.Compounds 2,16 and 17 exhibited cytotoxicactivities,especially,compound 17 showed moderate cytotoxic activities with IC50 values of 39. 2 ~ 53. 2 μM.
作者
梁益敏
郁阳
孙云鹏
刘劲松
马宗慧
刘海涛
王刚
LIANG Yin-min;YU Yang;SUN Yun-pengi;LIU;Jin-song;MA Zong-hui;LIU Hai-tao;WANG Gang(School of Pharmacy ,Anhui University of Chinese Medicine & Anhui Key Laboratory.for mordern Chinese Materia Medica&Synergetic Innovation Center of Anhui Authentic Chinese Medicine Quality Improvement ,Henri 230012, China)
出处
《天然产物研究与开发》
CAS
CSCD
北大核心
2018年第5期783-788,共6页
Natural Product Research and Development
基金
国家中医药管理局"中药化学"重点学科建设项目
安徽省高校自然科学基金重点项目(KJ2016A856
KJ2016A853)