It refers to a 5 - (2 - [6 - (2,2-fluoro-di-phenyl) hydroxyhydrazide) crystal salt, which is an amino-1 (R) - hydroxy-hydroxyacyl-8-hydroxytoluene-2 (1H) - ona. It also refers to a drug synthesis including crystal salt, a cortisol including prednisone, naflocort and tipdenol, an antihemotic agent such as tetraethylbenzene salt and hydroxy salt, and / or a PDE4 inhibitor such as rolipram, arofilina, mesopram, etc., which is practical in treatment. Respiratory diseases
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