3-[(Ethylamino)methyl]-2-methylaniline 、 二碳酸二叔丁酯 在
silica 、 methanol-dichloromethane 作用下,
以
四氢呋喃 为溶剂,
反应 18.0h,
以to give 0.51 g (99%) of the title compound as a colourless oil的产率得到N-(3-amino-2-methylphenylmethyl)carbamic acid t-butyl ester
The present invention relates to novel compounds of formula (IA), which are JAK3 Kinase inhibitors, methods for their preparation and pharmaceutical compositions comprising them.