2,6-Lutidine → HCID 59015783, compound

Participants

Reaction Steps

Reflux a mixture of 2-chloromethyl-3-[4-hydroxy-7-(3-trifluoromethyl-pyridin-2-yl)-quinazolin-2-yl]-propionic acid ethyl ester (600 mg, 1.6 mmol), POCl3 (445 μl, 4.77 mmol), and 2,6-lutidine (596 μl, 4.77 mmol) in CHCl3 (20 ml) for 60 hours. Cool the mixture and concentrate under reduced pressure. Partition the residue between EtOAc and saturated NaHCO3 solution. Wash the EtOAc portion with additional NaHCO3 and then dry (Na2SO4) and concentrate under reduced pressure. Filter the brown residue through 2 inches of silica gel (1:1 EtOAc/hexanes eluent) and concentrate under reduced pressure to give 3-[4-chloro-7-(3-trifluoromethyl-pyridin-2-yl)-quinazolin-2-yl]-propionic acid ethyl ester.

Provenance & Evidence