申请人:I.S.F. Socièta per Azioni
公开号:EP0129666A1
公开(公告)日:1985-01-02
A novel method of preparing ethyl6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl} hydrazinecarboxylate is dis- dosed, wherein 7-chloro-3-methyl-4-oxo-4H-pyridazino[6, 1-c] [1,2,4]triazine is treated with ethyl-(2-hydroxypropyl) amine. The corresponding amino derivative is hydrolized in mild conditions and the hydrazino compound thus obtained is suitably acylated.
一种制备乙基6-[乙基-(2-羟基丙基)氨基]-3-哒嗪基}肼羧酸盐的新方法,其中 7-氯-3-甲基-4-氧代-4H-哒嗪并[6, 1-c] [1,2,4] 三嗪用乙基-(2-羟基丙基)胺处理。 相应的氨基衍生物在温和条件下水解,由此得到的肼化合物经适当酰化。