The case involves N-pyrazinecarbonyl-N'-substituted- sulfamoylguanidines and processes for making the same. The compounds are depicted in formular I.
wherein
R' is hydrogen,
lower alkyl having from 1 to 5 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms, lower alkenyl having from 2 to 3 carbon atoms;
R2 is hydrogen,
lower alkyl having from 1 to 5 carbon atoms;
R1 and R2 can be joined to form, with the nitrogen atom to which they are attached, a heterocyclic ring having 3 to 6 carbon atoms therein;
R2 is hydrogen,
lower alkyl having from 1 to 5 carbon atoms;
R4 is hydrogen,
lower alkyl having from 1 to 5 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms;
R5 is hydrogen,
lower alkyl having from 1 to 5 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms;
X is halo;
and the pharmaceutically acceptable non-toxic acid addition salts thereof.
The compounds are excellent eukalemic agents possessing diuretic and natriuretic properties.
本案涉及 N-
吡嗪羰基-N'-取代-
氨基磺酰基
胍类化合物及其制造工艺。这些化合物如式 I 所示。
其中
R'是
氢
具有 1 至 5 个
碳原子的低级烷基、具有 3 至 6 个
碳原子的
环烷基、具有 2 至 3 个
碳原子的低级
烯基;
R2 是
氢
具有 1 至 5 个
碳原子的低级烷基;
R1 和 R2 可以连接起来,与所连接的
氮原子一起形成一个杂环,其中有 3 至 6 个
碳原子;
R2 是
氢、
具有 1 至 5 个
碳原子的低级烷基;
R4 是
氢
R4 是
氢、具有 1 至 5 个
碳原子的低级烷基、具有 3 至 6 个
碳原子的
环烷基;
R5 是
氢
R5 是
氢、具有 1 至 5 个
碳原子的低级烷基、具有 3 至 6 个
碳原子的
环烷基;
X 是卤素;
及其药学上可接受的无毒酸加成盐。
这些化合物是具有利尿和利
钠特性的优良白血病药物。