| abstract |
Constitution: an amino acid derivative represented by the general formula (I): R<1>NH-CH(R<2>)-CONH-A-ONO2 and a pharmacologically acceptable salt thereof, wherein R<1> represents hydrogen, C1-C7 alkanoyl, C1-C6 alkoxycarbonyl, C6-C10 arylcarbonyl, C7-C13 aralkylcarbonyl, C7-C13 aralkyloxycarbonyl, or 5- or 6-membered heteroarylcarbonyl; R<2> represents substituted C1-C6 alkyl; and A represents C2-C5 alkylene. Effect: this compound is excellent in a collateral vessel dilator activity and an antianginal activity, and hence useful as an antianginal drug. |