A convenient approach towards the 1-aminomethyl-1-fluorocycloalkane scaffold
摘要:
A three-step synthesis towards 1-aminomethy1-1-fluorocycloalkanes was developed starting from methylenecycloalkanes. Methylenecyclobutane, methylenecyclopentane and methylenecyclohexane were first bromofluorinated to provide the corresponding Markovnikov products, 1-bromomethy1-1-fluorocycloalkanes, which were then converted towards the title compound via azide substitution and hydrogenation. The bromofluorination of methylenecyclopropane, however, led to both the Markovnikov and the anti-Markovnikov product. (C) 2013 Elsevier Ltd. All rights reserved.
The present invention relates to a novel class of chromene-2-carboxamide compounds inhibitors of general formula (I) wherein R1, R2, R3, R4, R5, R6, R7, R8 and X are as defined herein, to their use in medicine, and their use as anti-infective agents in particular, to compositions containing them, to processes for their preparation and to intermediates used in such processes.