4-(3-CARBOXY-PYRIDIN-2-YL)-PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER 2-(4-(tert-butoxycarbonyl)piperazin-1-yl)nicotinic acid 2-(4-BOC-PIPERAZIN-1-YL)NICOTINIC ACID 4-(3-Carboxy-pyridin-2-yl)piperazine-1-carboxylic acidtert-butyl ester≥ 99% (HPLC) 2-{4-[(tert-butoxy)carbonyl]piperazin-1-yl}pyridine-3-carboxylic acid 4-(3-Carboxypyridin-2-yl)piperazine, N1-BOC protected 1-Piperazinecarboxylic acid, 4-(3-carboxy-2-pyridinyl)-, 1-(1,1-dimethylethyl) e… 1-Piperazinecarboxylic acid, 4-(3-carboxy-2-pyridinyl)-, 1-(1,1-dimethylethyl) ester