Novel thioketene derivatives and process for the preparation thereof
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0149534A2
公开(公告)日:1985-07-24
Novel thioketene derivative of the formula:
wherein R1 is hydrogen atom, an alkyl group, a lower alkenyl group, a phenyl group or a group of the formula: -B-Y;
Y is a nitrogen-containing monocyclic heterocyclic group or a substituted or unsubstituted phenyl group;
B is a straight or branched lower alkylene group;
R2 and R3 are each a lower alkyl group or combine together to form a group of the formula: =CH2CH2- or -CH=CH-;
R4 is hydrogen atom, a lower alkyl group or a (lower alkoxyl carbonyl group;
A is a group of the formula: -(CH2)n- or -CH(COOR5)-;
n is a integer of 0, 1 or 2 and
R5 is a lower alkyl group; compounds of the formula
wherein R1 is hydrogen atom, an alkyl group, a lower alkenyl group, a phenyl group or a group of the formula: -B-Y;
Y is a nitrogen-containing monocyclic heterocyclic group or a substituted or unsubstituted phenyl group;
B is a straight or branched lower alkylene group;
R2 and R3 are each a lower alkyl group or combine together to form a group of the formula: -CH2CH2- or -CH=CH-;
R6 is a lower alkyl group;
R7 is hydrogen atom or a group of the formula: -A'-CH2COOR8;
A' is a group of the formula: -CH2- or -CH(COORS)-; and R6 and R8 are each a lower alkyl group; and processes for their preparation. These compounds are useful as agents for treating and protecting various liver diseases.
式中的新型硫代酮衍生物:
其中 R1 是氢原子、烷基、低级烯基、苯基或式中的一个基团:-B-Y;
Y 是含氮的单环杂环基团或取代或未取代的苯基;
B 是直链或支链低级亚烷基;
R2 和 R3 各为低级烷基,或结合在一起形成式中:=CH2CH2- 或 -CH=CH- 的基团;
R4 是氢原子、低级烷基或低级羰基;
A 是式中的一个基团:-(CH2)n-或-CH(COOR5)-;
n 是 0、1 或 2 的整数,且
R5 是低级烷基; 式中的化合物
其中 R1 是氢原子、烷基、低级烯基、苯基或式中的一个基团:-B-Y;
Y 是含氮的单环杂环基团或取代或未取代的苯基;
B 是直链或支链低级亚烷基;
R2 和 R3 各为一个低级烷基或结合在一起形成一个式中的基团:-CH2CH2-或-CH=CH-;
R6 是低级烷基
R7 是氢原子或式中的一个基团:-A'-CH2COOR8;
A'是式中的一个基团:-CH2-或-CH(COORS)-;以及 R6 和 R8 各为低级烷基;及其制备方法。这些化合物可用作治疗和保护各种肝脏疾病的药物。
US4663319A
申请人:——
公开号:US4663319A
公开(公告)日:1987-05-05
3-(1,3-dithiol-2-ylidene)-2,4-dioxopyrrolidines, -piperidines, and
申请人:Tanabe Seiysku Co., Ltd.
公开号:US04663319A1
公开(公告)日:1987-05-05
Novel thioketene derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen atom, an alkyl group, a lower alkenyl group, a phenyl group or a group of the formula: --B--Y; Y is a nitrogen-containing monocyclic heterocyclic group or a substituted or unsubstituted phenyl group; B is a straight or branched lower alkylene group; R.sup.2 and R.sup.3 are both a lower alkyl group or are combined together to form a group of the formula: --CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--; R.sup.4 is hydrogen atom, a lower alkyl group or a (lower alkoxy)carbonyl group; A is a group of the formula: --(CH.sub.2).sub.n -- or --CH(COOR.sup.5)--; n is an integer of 0, 1 or 2 and R.sup.5 is a lower alkyl group, are disclosed. The compound (I) is useful as an agent for treating and protecting various liver diseases.