申请人:Mead Johnson & Company
公开号:US04021562A1
公开(公告)日:1977-05-03
A series of 2,6-diamino-4-tertiary-amino-pyridine 1-oxides is disclosed. Substituents in the 4-position include diethylamino, pyrrolidinyl, piperidino, morpholino, thiomorpholino, and N-methylpiperazino. Novel oxadiazolones such as 5-amino-7-(1-piperidinyl)-2H-[1,2,4]-oxadiazolo[2,3-a]pyridine-2-one which are useful in the preparation of the pyridine 1-oxides are also disclosed. The compounds of this invention lower blood pressure in normotensive and hypertensive mammals and are particularly useful in the treatment of hypertensive conditions in mammals. 2,6-Diamino-4-(1-piperidinyl)pyridine 1-oxide is a representative embodiment of the invention.
本发明揭示了一系列2,6-二氨基-4-三级胺基吡啶1-氧化物。4位取代基包括二乙基氨基、吡咯烷基、哌啶基、吗啉基、硫代吗啉基和N-甲基哌嗪基。还揭示了新型噁二唑酮,例如5-氨基-7-(1-哌啶基)-2H-[1,2,4]-噁二唑并[2,3-a]吡啶-2-酮,其在制备吡啶1-氧化物方面非常有用。该发明化合物能降低正常和高血压哺乳动物的血压,特别适用于哺乳动物高血压病的治疗。2,6-二氨基-4-(1-哌啶基)吡啶1-氧化物是本发明的典型实施例。