(2R,5R)-2-methyl-5-(toluene-4-sulfonyloxymethyl)piperidine-1-carboxylic cid tert-butyl ester

(2R,5R)-tert-butyl 5-(hydroxymethyl)-2-methylpiperidine-1-carboxylate

2-溴-5-甲基苯甲腈

(2R,5R)-5-(5-fluoro-pyridin-2-yloxymethyl)-2-methylpiperidine-1-carboxylic acid tert-butyl ester

2-碘-5-甲基苯甲酸