2-heteroaryl-substituted benzimidazole derivative

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C548S304700, C548S146000, C548S215000, C548S240000, C548S131000, C548S207000, C540S215000, C514S398000, C514S399000, C514S256000, C514S364000, C514S277000, C514S406000, C544S224000, C544S295000

Reexamination Certificate

active

07728025

ABSTRACT:
A glucokinase activator is provided; and a remedy and/or a preventive for diabetes, or a remedy and/or a preventive for diabetes such as retinopathy, nephropathy, neurosis, ischemic cardiopathy, arteriosclerosis, and further a remedy and/or a preventive for obesity are provided.A glucokinase activator characterized by containing a 2-heteroaryl-substituted benzimidazole derivative of a general formula (I-0) or its pharmaceutically-acceptable salt:[in the formula, X represents a carbon atom or a nitrogen atom;X1, X2, X3and X4each independently represent a carbon atom or a nitrogen atom; the ring A represents a 5- or 6-membered nitrogen-containing aromatic hetero ring of a formula (II):(in the formula, X represents a carbon atom or a nitrogen atom); R1represents an aryl, etc.; R2represents a hydroxy, etc.; R3represents a —C1-6alkyl, etc.; R4represents a —C1-6alkyl, etc.; X5represents —O—, etc.; a indicates an integer of 1, 2 or 3; q indicates an integer of from 0 to 2; m indicates an integer of from 0 to 2].

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