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 lengths, led to the identification of the 5-(4-pyridinyl) substituted analog 10b as a highly potent MCH-R1 antagonist with an IC50 value of 3 nM. This substance also displays good metabolic stability and it does not significantly inhibit cytochrome P450 (CYP450) enzymes. However, 10b has unacceptable oral bioavailability.
研究发现,含有连接
哌啶基苯乙酰胺基团的新型
萘并[1,2-b]
呋喃-2-甲酰胺可作为
黑色素浓缩激素受体 1 (MCH-R1) 拮抗剂。通过对
萘并[1,2-b]
呋喃-2-甲酰胺骨架的 C-5 位含有各种芳基和杂芳基并具有不同链节长度的该家族成员进行广泛的结构-活性关系(
SAR)研究,确定了 5-(4-
吡啶基)取代的类似物 10b 是一种高效的 MCH-R1 拮抗剂,其 IC50 值为 3 n
M。这种物质还具有良好的代谢稳定性,对细胞色素 P450(CYP450)酶的抑制作用不明显。不过,10b 的口服
生物利用度令人难以接受。