Compounds of formula I and a method for their preparation are described:
where R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, nitro, amino, alkylcarbonylamino, alkylamino or dialkylamino group; R4 signifies -alkyl-aryl or -alkyl-heteroaryl; X signifies CH2, oxygen atom or sulphur atom; n is 2 or 3; including the individual (R)- and (S)-enantiomers or mixtures of enantiomers thereof; and including pharmaceutically acceptable salts and esters thereof. The compounds have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure.
描述了式I的化合物及其制备方法:
其中,R1、R2和R3相同或不同,表示氢、卤素、烷基、硝基、
氨基、烷基羰基
氨基、烷基
氨基或二烷基
氨基基团;R4表示-烷基-芳基或-烷基-杂芳基;X表示
CH2、氧原子或
硫原子;n为2或3;包括(R)-和(S)-对映体或对映体混合物;并包括其药学上可接受的盐和酯。这些化合物具有治疗心血管疾病如高血压和慢性心力衰竭的潜在有价值的药物性质。