申请人:Societe Cortial, S.A.
公开号:US04600788A1
公开(公告)日:1986-07-15
This invention relates to new products of the general formula ##STR1## where R.sub.1 =H, OH, OCOCH.sub.3, OSO.sub.2 CH.sub.3, branched or unbranched alkyl containing 1 to 5 carbon atoms. R.sub.2 =NHCOR.sub.3, NHCOCH.sub.2 X, NHSO.sub.2 CH.sub.3, N(SO.sub.2 CH.sub.3).sub.2, SO.sub.2 N(CH.sub.3).sub.2, SO.sub.2 NHCH.sub.3, SO.sub.2 NCH.sub.3 CH.sub.2 CH.sub.2 OH, SO.sub.2 NH.sub.2 wherein R.sub.3 is a lower alkyl containing 1 to 4 carbon atoms; and X is NR.sub.4 R.sub.5 or ##STR2## wherein R.sub.4 and R.sub.5 are both independently lower alkyls containing 1 to 4 carbon atoms and ##STR3## is piperidine, pyrrolidine or morpholine. These products can be in the form of pharmaceutically acceptable derivatives such as esters, amides, salts. When R.sub.2 contains an amino function, the product can be in the form of an acid salt. These products are prepared from their methyl esters either by reaction between ##STR4## and paramethoxycarbonylbenzoic acid chloride or by means of derivative I such as R.sub.2 is NH.sub.2. The products of this invention are used in therapy in the prevention and treatment of complications from diabetes or as diuretics.
本发明涉及一般式##STR1##的新产品,其中R.sub.1 = H、OH、OCOCH.sub.3、OSO.sub.2 CH.sub.3、支链或非支链烷基,含有1至5个碳原子。R.sub.2 =NHCOR.sub.3、NHCOCH.sub.2 X、NHSO.sub.2 CH.sub.3、N(SO.sub.2 CH.sub.3).sub.2、SO.sub.2 N(CH.sub.3).sub.2、SO.sub.2 NHCH.sub.3、SO.sub.2 NCH.sub.3 CH.sub.2 CH.sub.2 OH、SO.sub.2 NH.sub.2,其中R.sub.3是含有1至4个碳原子的低烷基;X是NR.sub.4 R.sub.5或##STR2##其中R.sub.4和R.sub.5都是独立的含有1至4个碳原子的低烷基,而##STR3##是哌嗪、吡咯烷或吗啡环。这些产品可以是药学上可接受的衍生物,如酯、酰胺、盐。当R.sub.2含有氨基功能时,该产品可以是酸盐形式。本发明的产品可通过它们的甲酯与paramethoxycarbonylbenzoic酸氯反应或通过衍生物I的手段制备,例如R.sub.2是NH.sub.2。本发明的产品用于治疗糖尿病并发症的预防和治疗,或作为利尿剂。