Improved Syntheses of Morinol C and D by Employing Mizoroki-Heck Reaction and Their Cytotoxic and Antimicrobial Activities
作者:Koji OGURA、Takuya SUGAHARA、Masafumi MARUYAMA、Koichi AKIYAMA、Satoshi YAMAUCHI
DOI:10.1271/bbb.100255
日期:2010.8.23
Improved syntheses of optically pure (−)- and (+)-morinol C, and (−)- and (+)-morinol D were achieved by employing the Mizoroki-Heck reaction to construct the cinnamyl moiety. The protective group of the alkene substrate affected the yield of this key reaction. The reaction with a combination of the acetate-protected olefin and 4-methoxyphenylboronic acid gave the best result producing morinol C and D. All stereoisomers of morinol C and D showed cytotoxic activity, with (R,R)-morinol C showing the highest antibacterial activity.
通过使用 Mizoroki-Heck 反应来构建肉桂基,改进了光学纯度为 (-)- 和 (+)-Morinol C 以及 (-)- 和 (+)-Morinol D 的合成。烯烃底物的保护基影响了这一关键反应的产率。吗啉醇 C 和 D 的所有立体异构体都具有细胞毒活性,其中 (R,R)- 吗啉醇 C 的抗菌活性最高。