Potassium tert-butoxide → 1-Cyclopentyl-7-[4-(4-methylpiperazin-1-yl)phenylamino]pyrimido-[4,5-d]pyrimidin-2(1H)-one

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Reaction Steps

Prepared from 150 mg (0.37 mmol) of 1-cyclopentyl-7-[4-(4-methylpiperazin-1-yl)phenylamino]-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one and 165 mg (1.47 mmol) of potassium tert-butoxide in 6 mL of THF. The dark orange semi-solid is triturated in diethyl ether, and the yellow powder is collected and dried to give 100 mg (67%) of the title compound: mp 220-225° C. (dec).

Provenance & Evidence