(S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide 、
二甲胺 在
Brine 、
Sodium sulfate-III 、
异丙醚 、
二氯甲烷 作用下,
以
四氢呋喃 为溶剂,
反应 48.0h,
以to give (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(6-(dimethylamino)nicotinoyloxy)acetoxy)-ethyl)pyridine 1-oxide as a white solid (180 mg, 0.287 mmol, 88% yield, LC-MS purity (BPI): 98%, MS/ESI+ 626.24 [MH]+, [αD]=−37.04, c=0.50, DCM)的产率得到(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(6-(dimethylamino)nicotinoyloxy)acetoxy)ethyl)pyridine 1-oxide