甲酸 、
8-[2-(2-{4-[({2-[2-((R)-cyclohexyl-hydroxy-phenyl-methyl)-oxazol-5-yl]-ethyl}-methyl-amino)-methyl]-phenyl}-ethylamino)-1-hydroxy-ethyl]-5-hydroxy-4H-benzo[1,4]oxazin-3-one 以
水 、
乙腈 为溶剂,
生成 8-[2-(2-{4-[({2-[2-((R)-cyclohexyl-hydroxy-phenyl-methyl)-oxazol-5-yl]-ethyl}-methyl-amino)-methyl]-phenyl}-ethylamino)-1-hydroxy-ethyl]-5-hydroxy-4H-benzo[1,4]oxazin-3-one diformate