The present invention presents a method for masking acidic groups existing in NSAI drugs to prevent or to reduce the hazards of NSAI drugs to GI (gastrointestinal) system. The developed method comprises production of new amide derivatives by methyl esterification of carboxylic acid groups which belong to NSAI drugs and then amidification of the same. The invention is also related to the amide derivatives of new NSAI drugs which are suitable for use as pro-drugs.
本发明提出了一种掩盖非甾体抗炎药物中酸性基团的方法,以防止或减少非甾体抗炎药物对胃肠道系统的危害。所开发的方法包括通过对属于非甾体抗炎药物的
羧酸基团进行甲酯化,然后对其进行酰胺化,从而生产出新的酰胺衍
生物。本发明还涉及适合用作原药的新型非甾体抗炎药物的酰胺衍
生物。