Pharmaceutical compositions containing thio-dioxolane derivatives having mucolytic activity
申请人:PROTER S.p.A.
公开号:EP0288871A2
公开(公告)日:1988-11-02
The present invention relates to pharmaceutical compositions contaning thiodioxolane derivatives having an interesting mucolytic activity, and to a process for the preparation of said thiodioxolane derivatives of the general structural formula
in which the carbon atom marked with an asterisk indicates a asimmetry center in the molecule,
X represents an hydroxy group or -SRʺ and Rʺ is hydrogen or a suitable acylic radical,
R rapresents hydrogen, a lower alkyl, a lower hydroxy alkyl, or phenyl,
Rʹ represents a lower alkyl, a lower hydroxy alkyl, phenyl, -(CH₂)nSRʺ where n is a whole number between 1 and 3 and Rʺ has the above indicated meaning, with condition that X and Rʹ can never be both type of groups.
本发明涉及含有具有有趣的粘液溶解活性的硫代二氧杂环戊烷衍生物的药物组合物,以及制备上述硫代二氧杂环戊烷衍生物的工艺,其结构通式为
其中标有星号的碳原子表示分子中的一个相似中心、
X代表羟基或-SRʺ,Rʺ代表氢或合适的酰基、
R代表氢、低级烷基、低级羟基烷基或苯基、
Rʹ代表低级烷基、低级羟基烷基、苯基、-(CH₂)nSRʺ,其中 n 是介于 1 和 3 之间的整数,Rʺ 具有上述含义,条件是 X 和 Rʹ 绝不可以是两种类型的基团。