Diisopropylethylamine → HCID 24812352, compound

Participants

Reaction Steps

A mixture of [2-[2-(2,3-difluorophenyl)ethyl]-4-oxo-1(4H)-quinazolinyl]acetic acid (Int. C1) (115 mg, 1 equiv), ethyl 2-methyl-2-[4-({[4′-(trifluoromethyl)-4-biphenylyl]methyl}amino)-1-piperidinyl]propanoate (Int. B2) (150 mg, 1 equiv), HATU (151 mg, 1.2 equiv), DMF (2.7 ml) and DIPEA (0.17 ml, 3 equiv) was shaken at room temperature for 5 h. The reaction mixture was partitioned between ethyl acetate/methanol and aqueous sodium bicarbonate, then the organic layer was brine-washed and dried. Flash chromatography (silica, 3-4% methanol in DCM) gave ethyl 2-[4-({[2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetyl}{[4′-(trifluoromethyl)-4-biphenylyl]methyl}amino)-1-piperidinyl]-2-methylpropanoate as a white solid (190 mg).

Provenance & Evidence