A mixture of 6.7 g. of this material, 1.5 g. of 10% palla- dium on Darco and 125 ml. of water was shaken with hy- drogen under 2-3 atmospheres of pressure. One mole of hydrogen was consumed in several minutes. After removal of the catalyst, the solution was concentrated to dryness under reduced pressure. The white, crystalline residue was slurried with alcohol and collected on a filter. Two fractions, totaling 4.8 g., of 2-isobutyl-3-amino-4-methyl-5- aminomethylpyridine ...
