摘要:
Compounds having coronary and vasodilator effects, a hypotensive effect, and useful as antianginal drugs and drugs for treating hypertension are represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different groups and each represents a lower alkyl group, one of R.sub.3 and R.sub.4 represents a lower alkyl group and the other represents a group of the general formula: ##STR2## wherein R.sub.5 represents an aralkyl group or an acyl group and n represents 0 or an integer of 1-3; the pharmaceutically acceptable acid addition salts thereof are also effective therapeutic compounds.
摘要翻译:具有冠状血管扩张剂作用,降压作用,作为抗血管药物和用于治疗高血压的药物有用的化合物由以下通式表示:其中R1和R2是相同或不同的基团,并且各自表示低级烷基, R 3和R 4之一表示低级烷基,另一个表示以下通式的基团:其中R 5表示芳烷基或酰基,n表示0或1-3的整数; 其药学上可接受的酸加成盐也是有效的治疗化合物。
摘要:
Novel pyrazoloacridone compounds represented by the following formula: ##STR1## and pharmaceutically acceptable salts thereof have an excellent anti-tumor activity.
摘要:
The present invention relates to a process for producing 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid compounds or salts thereof represented by the following formula (II): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent hydrogen, hydroxy or lower alkoxy, and R.sup.4 represent hydrogen, lower alkyl, aryl or aralkyl, the process comprising, allowing phenylalanine compounds to react with formaldehyde or paraformaldehyde in the presence of sulfuric acid or hydrobromic acid, the phenylalanine compounds being represented by the following formula (I): ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the same meaning as defined above.