Synthesis of the optically active bicyclo[4.3.0]nonane derivative, regarded as the CD ring moiety of 12-oxygenated steroids
作者:Hidemichi Mitome、Hiroaki Miyaoka、Yasuji Yamada
DOI:10.1016/s0040-4039(00)01413-1
日期:2000.10
active bicyclo[4.3.0]nonane derivative, considered to be the CD ring moiety of 12-oxygenated steroids was synthesized in the present study, which involved stereo-controlled formation of bicyclo[2.2.2]octane derivative by sequential Michael reaction, formation of tricyclo[5.2.2.02,6]undecane derivative by intramolecular pinacol coupling reaction and the CC bond cleavage by retro-aldol reaction.
本研究合成了光学活性的双环[4.3.0]壬烷衍生物,该化合物被认为是12个氧化的类固醇的CD环部分,涉及通过顺序迈克尔反应立体控制双环[2.2.2]辛烷衍生物的形成。 ,通过分子内频哪醇偶联反应形成三环[5.2.2.0 2,6 ]十一烷衍生物,并通过逆醛醇缩合反应裂解CC键。