作者:David Barnes-Seeman、Monish Jain、Leslie Bell、Suzie Ferreira、Scott Cohen、Xiao-Hui Chen、Jakal Amin、Brad Snodgrass、Panos Hatsis
DOI:10.1021/ml400045j
日期:2013.6.13
Susceptibility to metabolism is a common issue with the tert-butyl group on compounds of medicinal interest. We demonstrate an approach of removing all the fully sp(3) C-Hs from a tert-butyl group: replacing some C-Hs with C-Fs and increasing the s-character of the remaining C-Hs. This approach gave a trifluoromethylcyclopropyl group, which increased metabolic stability. Trifluoromethylcyclopropyl-containing analogues had consistently higher metabolic stability in vitro and in vivo compared to their tert-butyl-containing counterparts.