Trifluoroacetic acid → HCID 9884644, compound

Participants

Reaction Steps

Prepared from 150 mg (0.32 mmol) of 1-isopropyl-7-[4-(pyrazol-1-yl)phenylamino]-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one, trifluoroacetic acid and 218 mg (1.94 mmol) of potassium tert-butoxide in 10 mL of tetrahydrofuran. The reaction mixture is stirred for 48 hours, 50 mg (0.44 mmol) of potassium tert-butoxide is added, and the reaction is continued for 72 hours. After the workup, the semi-solid is triturated in diethyl ether, and the powder is collected and dried to give 86 mg (73%) of the title compound: mp 243-247° C. (dec).

Provenance & Evidence