The discovery that novel naphtho [1, 2-b] furan-2-carboxamides containing linked piperidinylphenylacetamide groups serve as melanin concentrating hormone receptor 1 (MCH-R1) antagonists is described. An extensive structure–activity relationship (SAR) study, probing members of this family that contain a variety of aryl and heteroaryl groups at C-5 of the naphtho [1, 2-b] furan-2-carboxamide skeleton and having different chain linker ...