Acetonitrile → HCID 67177495, compound

Participants

Reaction Conditions

Reaction Steps

Step 2—Synthesis of compounds xp1 and xp2: Tert-butyl 2-chloro-8-(cyanomethyl)-4-((S)-3-methylmorpholino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate (0.494 g, 0.00121 mol), [4-Ethylureido)phenyl]boronic acid, pinacol ester (0.471 g, 0.00162 mol), Tetrakis(triphenylphosphine)palladium(0) (0.1019 g, 8.818E-5 mol) Sodium carbonate (0.205 g, 0.00193 mol) and Potassium acetate (0.205 g, 0.00209 mol) were combined, nitrogen purged three times, added dry Acetonitrile (10.0 mL, 0.191 mol) followed by deoxygenated Water (6.00 mL, 0.333 mol), heated at 90° C. and stirred overnight. The reaction mixture was cooled to room temperature and stirred for 2 days. The reaction mixture was diluted with water, extracted three times with 10% MeOH in dichloromethane, dried over Magnesium sulfate, filtered, concentrated, chromatographed through silica gel (40 g, 0-100% EtOAc in heptane), purified by HPLC, and the diastereomers were separated out by SFC.

Provenance & Evidence