Practical approaches to the matrix metalloproteinase inhibitor Trocade® (Ro 32-3555) and to the TNF-α converting enzyme inhibitor Ro 32-7315
作者:Hans Hilpert
DOI:10.1016/s0040-4020(01)00720-7
日期:2001.9
Stereoselective methods were found to efficiently prepare 2- and 3-substituted succinates with anti configuration. In the synthesis of Trocade®1, the hydantoinmethyl residue was introduced by alkylation of the non-chelated potassium enolate 19 with the bromomethyl hydantoin 9 to give a 92:8 mixture favouring the 2,3-anti configurated succinate 18. The preparation of TNF-α converting enzyme (TACE) inhibitor
发现立体选择性方法可以有效地制备具有反构型的2-和3-取代的琥珀酸酯。在TROCADE的合成® 1中,hydantoinmethyl残余物通过非螯合钾烯醇化物烷基化引入19与溴甲基乙内酰脲9,得到92:8混合物利于2,3-反可配置琥珀酸盐18。TNF-α转化酶(TACE)抑制剂2的制备是通过使用CF 3 CONH 2对二烷基化的烯醇化物23进行高度立体选择性质子化,从而提供98:2的混合物(有利于2,3-)防琥珀酸24。