Hydrochloric Acid → N4-(4-(4-Ethyl-1-piperazinyl)phenyl)-N6-methyl-4,6-pyrimidinediamine

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Reaction Conditions

Reaction Steps

A mixture of 4-(4-ethylpiperazin-1-yl)-aniline (1 g, 4.88 mmol) (prepared in analogy to Example 238, Step 238.1), (6-chloro-pyrimidin-4-yl)-methyl-amine (1.81 g, 12.68 mmol, 1.3 eq.) and 4N HCl in dioxane (15 ml) is heated in a sealed tube to 150° C. for 5 h. The reaction mixture is concentrated, diluted with DCM and a saturated aqueous solution of sodium bicarbonate. The aqueous layer is separated and extracted with DCM. The organic phase is washed with brine, dried (sodium sulfate), filtered and concentrated. Purification of the residue by silica gel column chromatography (DCM/MeOH, 93:7) followed by trituration in diethyl ether affords the title compound as a white solid: ESI-MS: 313.2 [MH]+; tR=1.10 min (system 1); TLC: Rf=0.21 (DCM/MeOH, 93:7).

Provenance & Evidence