Propionic Acid → (+)9-[6-(4-Methoxy-benzylamino)-pyridin-2-yl]-3-pyrimidin-5-yl-non-4-enoic acid ethyl ester

Participants

Reaction Steps

A solution of the allylic alcohol 6-9 (1.6 g, 3.37 mmol) in (EtO)3CMe (10 mL) was treated with 100 uL of a 1 mL solution of (EtO)3CMe containing 10 uL of propionic acid. The yellow solution was heated at 150° for 90 minutes. The solution was cooled to room temperature and poured into 1N HCl/brine. The mixture was extracted with CHCl3, dried, concentrated, and purified on silica gel (5% MeOH/CHCl3) to give 2.01 g of 6-10.

Provenance & Evidence