上游原料
diphenyl disulfide; 1-(phenyldisulfanyl)benzene; diphenyldisulfidetert-butyl 4-hydroxy-1-piperidinecarboxylate2-bromo-1-(4-fluorophenyl)-1-ethanonetert-butyl 4-(phenylsulfanyl)-1-piperidinecarboxylatetert-butyl 4-(phenylsulfonyl)-1-piperidinecarboxylate4-(phenylsulfonyl)piperidine; phenyl 4-piperidinyl sulfone