Bradette-Hébert Marie-Eve, Legault Jean, Lavoie Serge, Pichette André
LASEVE, Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Quebec, Canada.
Chem Pharm Bull (Tokyo). 2008 Jan;56(1):82-4. doi: 10.1248/cpb.56.82.
A new labdane diterpene, 9alpha,16xi-dihydroxy-6-oxo-7,13-labdadien-15,16-olide (solicanolide, 1) and six known compounds identified as quercetin (2), 3-O-caffeoylquinic acid (3, neochlorogenic acid), 5-O-caffeoylquinic acid (4, chlorogenic acid), 4,5-di-O-caffeoylquinic acid (5), 3,5-di-O-caffeoylquinic acid (6) and 3,4-di-O-caffeoylquinic acid (7) were isolated from the flowers of Solidago canadensis. To our knowledge, compound 7 was isolated for the first time in S. canadensis. This work describes the isolation of compounds 1-7 and the structure elucidation of a new compound identified as compound 1. Solicanolide (1) showed cytotoxic activity against A549 (IC(50): 13+/-2 microM), DLD-1 (IC(50): 26+/-2 microM) and WS1 (IC(50): 17+/-1 microM) cell lines.
从加拿大一枝黄花的花中分离出一种新的半日花烷二萜,9α,16ξ - 二羟基 - 6 - 氧代 - 7,13 - 半日花二烯 - 15,16 - 内酯(加拿大一枝黄花醇内酯,1)以及六种已知化合物,分别鉴定为槲皮素(2)、3 - O - 咖啡酰奎宁酸(3,新绿原酸)、5 - O - 咖啡酰奎宁酸(4,绿原酸)、4,5 - 二 - O - 咖啡酰奎宁酸(5)、3,5 - 二 - O - 咖啡酰奎宁酸(6)和3,4 - 二 - O - 咖啡酰奎宁酸(7)。据我们所知,化合物7首次从加拿大一枝黄花中分离得到。本文描述了化合物1 - 7的分离以及新化合物(鉴定为化合物1)的结构解析。加拿大一枝黄花醇内酯(1)对A549(IC50:13±2 μM)、DLD - 1(IC50:26±2 μM)和WS1(IC50:17±1 μM)细胞系显示出细胞毒性活性。