PROLINE ESTER AND PREPARATION CONTAINING THE SAME FOR PERCUTANEOUS ADMINISTRATION
申请人:Toaeiyo Ltd.
公开号:EP1538158A1
公开(公告)日:2005-06-08
A proline ester represented by the following formula (I) :
wherein R1 represents a hydroxy-lower alkyl group, a lower alkoxy-lower alkyl group, or a lower alkoxy-lower alkoxy-lower alkyl group or a pharmaceutically acceptable salt thereof.
The proline ester (I) of the present invention and a pharmaceutically acceptable salt thereof are useful as a prodrug of enalaprilat, which is a medicine useful for preventing or treating circulatory diseases such as hypertension, cardiac diseases (e.g., cardiac hypertrophy, cardiac failure, and myocardial infarct), nephritis, and apoplexy. Thus, a drug containing the ester or a salt thereof is preferably formulated to a percutaneous preparation, particularly a patch, from the viewpoint of medicinal activity and use.
由下式(I)代表的脯氨酸酯:
其中 R1 代表羟基-低级烷基、低级烷氧基-低级烷基或低级烷氧基-低级烷氧基-低级烷基或其药学上可接受的盐。
本发明的脯氨酸酯(I)及其药学上可接受的盐可用作依那普利拉的原药,而依那普利拉是一种可用于预防或治疗循环系统疾病的药物,如高血压、心脏病(如心脏肥大、心力衰竭和心肌梗塞)、肾炎和肾功能衰竭。因此,从药用活性和用途的角度来看,含有酯或其盐的药物最好配制成经皮制剂,特别是贴剂。