tert-butyl 4-[2-(6-amino-8-bromo-9H-purin-9-yl)ethyl]piperidine-1-carboxylate

tert-butyl 4-{2-[6-amino-8-(1,3-benzodioxol-5-ylthio)-9H-purin-9-yl]ethyl}piperidine-1-carboxylate

4-哌啶乙醇

N-Boc-4-哌啶乙醇

1-N-Boc-O-甲磺酰－羟乙基哌啶