2-[(2,2-dimethylpropanoyl)amino]nicotinic acid2-(2,2-Dimethyl-propionylamino)-nicotinic acid2-(2,2-Dimethyl-propionylamino)-nicotinic acid2-(2,2,2-Trimethylacetamido)pyridine-3-carboxylic acid2-(特戊酰氨基)烟酸2-(2,2,2-Trimethylacetamido)nicotinic acid2-(Pivaloylamino)nicotinic acid