Potent NK1 receptor antagonists: synthesis and antagonistic activity of various heterocycles with an N-[3,5-bis(trifluoromethyl)benzyl]-N-methylcarbamoyl substituent.


Various N-[3,5-bis(trifluoromethyl)benzyl]-N-methylcarbamoyl heterocycles (1, 2 and 3) modified at rings A and B in the isoquinolone (1a) and pyrido[3,4-b]pyridine (2a) nuclei were prepared and evaluated for NK1 receptor antagonistic activities. The structure-activity relationship studies on this series, along with conformational analysis, showed that (i… (More)


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