| 摘要 |
<p>5-(6-Imidazo[1,2-a]pyridyl)pyridine derivatives represented by general formula: <IMAGE> wherein X represents hydrogen atom or methyl group; Y represents cyano group, carboxamido group, hydrogen atom, amino group or a halogen atom; Z represents hydrogen atom or a lower alkyl group; W represents hydrogen atom or a lower alkyl group; R1 represents hydrogen atom, a lower alkyl group, phenyl group, a group shown by formula: -CH2R4 in which R4 is a lower alkoxy group, or a group shown by formula: <IMAGE> in which R5 and R6 are hydrogen atom or a lower alkyl group R2 represents hydrogen atom or a halogen atom; and R3 represents hydrogen atom, a lower alkyl group or a halogen atom; or a tautomer thereof; and pharmacologically acceptable salts thereof are disclosed. The 5-(6-imidazo[1,2-a]pyridyl)pyridine derivatives are effective for treating congestive heart failures.</p> |
