Total Synthesis of A-Nor B-Aromatic OSW-1 Aglycon: A Highly Effective Approach to Optically Active trans-4,5-Benzhydrindane
作者:Yuji Matsuya、Takakatsu Itoh、Hideo Nemoto
DOI:10.1002/ejoc.200300140
日期:2003.6
A new enantioselective approach to the trans-4,5-benzhydrindane skeleton by intramolecular cycloaddition of o-quinodimethane, generated by thermolysis of a benzocyclobutene derivative, is described. Using this method, the synthesis of the A-nor B-aromatic aglycon of OSW-1, a potent antitumor saponin, was accomplished. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
描述了一种新的对映选择性方法,通过对苯并环丁烯衍生物的热解产生的邻醌二甲烷的分子内环加成作用对反式-4,5-二苯甲基茚满骨架。使用这种方法,合成了一种有效的抗肿瘤皂苷 OSW-1 的 A-nor B-芳香苷元。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)