Two isomeric conformationally restricted analogues of 4-trifluoromethylpiperidine were designed. The synthesis was performed in four steps from commercially available N-benzylmaleimide. The key reaction was the [3+2] cycloaddition between trifluoromethyldiazomethane and N-benzylmaleimide.
Key words
amines - trifluoromethyl group - cyclopropane - 4-trifluoromethylpiperidine - drug design