tert-butyl 4-(3-chlorophenyl)-4-(hydroxymethyl)piperidine-1-carboxylate 、
tert-butyl 4-(3-fluorophenyl)-4-(hydroxymethyl)piperidine-1-carboxylate 以to yield tert-butyl 4-(3-fluorophenyl)-4-formylpiperidine-1-carboxylate which的产率得到tert-butyl 4-(3-fluorophenyl)-4-formylpiperidine-1-carboxylate