421-83-0
三氟甲烷磺酰氯
+
109384-19-2
N-Boc-4-羟基哌啶
→
1138820-45-7
4-(三氟甲基磺酰氧基)哌啶-1-羧酸叔丁酯
444605-55-4
tert-butyl 4-(2-bromophenoxy)piperidine-1-carboxylate