Alkaloids from <i>Microcos paniculata</i> with Cytotoxic and Nicotinic Receptor Antagonistic Activities
作者:Patrick C. Still、Bitna Yi、Tatiana F. González-Cestari、Li Pan、Ryan E. Pavlovicz、Hee-Byung Chai、Tran Ngoc Ninh、Chenglong Li、Djaja Djendoel Soejarto、Dennis B. McKay、A. Douglas Kinghorn
DOI:10.1021/np3007414
日期:2013.2.22
Microcos paniculata is a large shrub or small tree that grows in several countries in South and Southeast Asia. In the present study, three new piperidine alkaloids, microgrewiapines A–C (1–3), as well as three known compounds, inclusive of microcosamine A (4), 7′-(3′,4′-dihydroxyphenyl)-N-[4-methoxyphenyl)ethyl]propenamide (5), and liriodenine (6), were isolated from cytotoxic fractions of the separate
Microcos paniculata是一种大型灌木或小乔木,生长在南亚和东南亚的几个国家。在本研究中,三种新的哌啶生物碱 microgrewipines A–C ( 1 – 3 ) 以及三种已知化合物,包括 microcosamine A ( 4 ), 7'-(3',4'-dihydroxyphenyl)- N - [4-甲氧基苯基)乙基]丙烯酰胺 ( 5 ) 和鹅掌楸 ( 6 ) 是从M. paniculata茎皮、枝条和叶子的单独氯仿可溶性提取物的细胞毒性级分中分离出来的。化合物1 – 6和1a(microgrewiapine A 3-acetate) 对 HT-29 人结肠癌细胞系显示出一系列细胞毒性值。当评估它们对人 α3β4 或 α4β2 烟碱乙酰胆碱受体 (nAChR) 的影响时,这些化合物中的一些显示出作为 nAChR 拮抗剂的活性。作为这项研究的结果,发现microgrewiapine