作者:Koji Mizuki、Kaoru Iwahashi、Naoko Murata、Mayuko Ikeda、Yutaka Nakai、Hiroki Yoneyama、Shinya Harusawa、Yoshihide Usami
DOI:10.1021/ol501631r
日期:2014.7.18
The first synthesis of (−)-pericosine E (6), a metabolite of the Periconia byssoides OUPS-N133 isolated originally from the sea hare Aplysia kurodai, has been achieved. Efficient and regioselective synthetic procedures for the synthesis of key intermediates, anti- and syn-epoxides 9 and 10, were developed using an anti-epoxidation of diene 12 with TFDO and a bromohydrination of 12 with NBS in CH3CN/H2O
已实现(-)-pericosine E(6)的首次合成,E-pericosine E(6)是最初从海兔Aplysia kurodai分离得到的Periconia byssoides OUPS-N133的代谢物。为关键中间体的合成,有效和区域选择性的合成方法的抗与顺式环氧化物9和10,分别使用开发抗二烯-epoxidation 12与TFDO和的bromohydrination 12与NBS在CH 3 CN / H 2 O( 2:3)。此外,合成6的特定旋光度比较天然6阐明,天然优选的Percosine E对映异构体具有与由氯代醇(-)- 8和抗环氧(+)- 9合成的(-)- 6相同的绝对构型。