Synthesis and structure–activity relationships of piperidine-based melanin-concentrating hormone receptor 1 antagonists

Isosteric replacement of the urea group of lead compound 1 led to novel substituted piperidine phenylamide analogues. SAR on the electron-induced effects of various linkers as well as substituents on the phenyl rings and the piperidine nitrogen has been investigated. Many single-digit nanomolar MCH R1 antagonists have been identified from this series.

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