英文别名tert-butyl 4-(6-chloro-2-pyridyl)piperidine-1-carboxylate; 1-Boc-4-(6-chloro-2-pyridyl)piperidine; 4-(6-Chloro-2-pyridinyl)-1-piperidinecarboxylic acid 1,1-dimethylethyl ester; 1,1-Dimethylethyl 4-(6-chloro-2-pyridinyl)-1-piperidinecarboxylate; Ixazomib impurity 1