Text this: Diacylhydrazine Derivatives of 2-(5-(Pyridin-3-yl)-2H-Tetrazol-2-yl)Acetohydrazide and 2-(5-(Pyridin-4-yl)-2H-Tetrazol-2-yl)Acetohydrazide as Potential Inhibitors of Nucleotide Pyrophosphatase.