5-氟肼酮(9ci)-2(1h)-吡啶酮 、 异氰酸异丙酯 在
乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 3.03h,
以to give the title compound as a colourless solid (464 mg, 93%)的产率得到2-(5-fluoropyridin-2-yl)-N-(propan-2-yl)hydrazinecarboxamide
Compounds of formula (I) and pharmaceutically acceptable salts thereof:
wherein R2, W, A, Y and R1 are as defined in the specification, are p38 MAPK inhibitors, and are useful as anti-inflammatory agents in the treatment of, inter alia, diseases of the respiratory tract.