Isatoic anhydrides of the formula: ##STR1## wherein R is alkyl, phenyl or phenalkyl and R.sub.1 and R.sub.2 are hydrogen, halo, alkyl, alkoxy or together methylenedioxy are intermediates reactable with an acyclic 5-methyl-thiopseudourea and acetonitrile to pharmaceutical agents, for example, analgetic and hypotensive agents, of the formula: ##STR2## wherein R, R.sub.1 and R.sub.2 are as defined and R.sup.o is hydrogen, alkyl, .omega.-alkenyl or phenyl.
式子:##STR1## 其中R为烷基、苯基或苯基烷基,R.sub.1和R.sub.2为氢、卤、烷基、烷氧基或一起的亚甲二氧基,是可与非环状5-甲基
硫代
尿素和
乙腈反应生成药物的中间体,例如镇痛和降压药物,
化学式为:##STR2## 其中R、R.sub.1和R.sub.2如上定义,R.sup.o为氢、烷基、ω-烯基或苯基。