O=C(Nc1nncn1C1CC1F)C1CCOc2ccc(Cl)c(F)c21
O=C(Nc1nncn1C1CC1F)[C@]1(F)CCOc2ccc(Cl)cc21
O=C(Nc1nncn1C1CC1F)C1CCOc2ccc(Cl)cc21
Cc1nnc(NC(=O)C2CCOc3ccc(Cl)c(F)c32)n1C1CC1F
Cc1nnc(NC(=O)[C@]2(F)CCOc3ccc(Cl)cc32)n1C1CC1F
Potential ways to block metabolism, improve permeation of lead molecules at this or at a later stage.