1-[[3,5-bis(trifluoromethyl)phenyl]methoxy]-3-(3,4-dichlorophenyl)-5-formyl-2(Z)-pentanone O-methyl-oxime 、
1-Piperidin-4-ylmethyl-piperidin-3-ol 在
2,2,2-三氟乙醇 、 3 A molecular sieve 、 sodium cyanoborohydride 作用下,
生成 1-(3,5-Bis-trifluoromethyl-benzyloxy)-3-(3,4-dichloro-phenyl)-5-[4-(3-hydroxy-piperidin-1-ylmethyl)-piperidin-1-yl]-pentan-2-one O-methyl-oxime