Enantioselective synthesis of the (+)-anti-7,8-dihydrodiol-9,10-epoxide of the potent carcinogen benzo[a]pyrene
作者:Xiaoming Huang、Thomas M. Harris
DOI:10.1039/c39950001699
日期:——
The title compound, the most important genotoxic metabolite of benzo[a]pyrene, has been prepared efficiently in a synthesis which capitalized on Jacobsen-type enantioselective epoxidation of 9,10-dihydrobenzo[a]pyrene, cleavage of the epoxide by KOH–Me2SO to give the tetrahydro-trans-7,8-diol, and formation of the dibenzoate from which the contaminating antipode was removed by crystallization.
利用 9,10- 二氢苯并[a]芘的雅各布森型对映体选择性环氧化作用、环氧化物在 KOH-Me2SO 作用下裂解生成四氢-反式-7,8-二醇,并形成二苯甲酸酯,通过结晶去除其中的污染性反式,从而高效地制备出了苯并[a]芘最重要的基因毒性代谢物--标题化合物。