The present invention is directed to N-[2-[[(diaminomethylene)amino]oxy]ethyl]-3-[(2,2-difluoro-2-phenylethyl)amino]-6-methyl-s-oxo-1(2H)-pyrazineacetamide, pharmaceutical compositions containing said compound and methods of treatment comprising inhibiting a serine protease using said compound. The present invention is further directed to a process for the preparation of the N-[2-[[(diaminomethylene)amino]oxy]ethyl]-3-[(2,2-difluoro-2-phenylethyl)amino]-6-methyl-2-oxo-1(2H)-pyrazineacetamide as a free base. The present invention is further directed to a process for the preparation of pharmaceutically acceptable salts of N-[2-[[(aminoiminomethyl)amino]oxy]ethyl]-3-[(2,2-difluoro-2-phenylethyl)amino]-6-methyl-2-oxo-1(2H)-pyrazineacetamide.
本发明涉及一种N-[2-[[(二
氨基甲基)
氨基]氧基]乙基]-3-[(2,2-二
氟-2-苯乙基)
氨基]-6-甲基-2-氧代-1(2H)-
吡嗪乙酰胺化合物,含有该化合物的制药组合物以及使用该化合物抑制
丝氨酸蛋白酶的治疗方法。本发明还涉及一种制备N-[2-[[(二
氨基甲基)
氨基]氧基]乙基]-3-[(2,2-二
氟-2-苯乙基)
氨基]-6-甲基-2-氧代-1(2H)-
吡嗪乙酰胺自由碱的方法。本发明还涉及一种制备N-[2-[[(
氨基亚甲基)
氨基]氧基]乙基]-3-[(2,2-二
氟-2-苯乙基)
氨基]-6-甲基-2-氧代-1(2H)-
吡嗪乙酰胺药用可接受盐的方法。