Guaiacol esters of alpha- and beta-mercaptopropionylalanine and alpha- and beta-mercaptopropionylglycine, process for their preparation and pharmaceutical compositions containing same
申请人:Sigma-Tau Industrie
Farmaceutiche Riunite S.p.A.
公开号:EP0013261A1
公开(公告)日:1980-07-09
Gualacol esters of alpha- and beta-mercaptopropionyl alanine and of alpha- and beta-mercaptopropionyl glycine having formulae:
wherein R is hydrogen or methyl and Y is hydrogen or an acyl radical (acetyl, benzoyl or methoxycarbonyl).
Pharmaceutical compositions containing these guaiacol esters have mucolytic activity.
The process for manufacturing these guaiacol esters comprises preparing in a known per se manner a sulhydryl group-containing intermediate wherein the sulfhydryl is protected by a trityl or p-methoxybenzyl group, and removing the protective group under acid conditions.
α-和β-巯基丙酰基丙
氨酸以及α-和β-巯基丙酰基甘
氨酸的
愈创木酚酯,其
化学式为
其中 R 是
氢或
甲基,Y 是
氢或酰基(
乙酰基、
苯甲酰基或甲
氧基羰基)。
含有这些
愈创木酚酯的药物组合物具有粘液溶解活性。
制造这些
愈创木酚酯的工艺包括以已知的本身方式制备含巯基的
中间体,其中的巯基被三
苯甲基或对甲
氧基
苄基保护,然后在酸性条件下去除保护基。