M. Bhupathy et al., A PRACTICAL SYNTHESIS OF 5-(CHLOROMETHYL)FURO[2,3-B]PYRIDINE, A KEY INTERMEDIATE FOR THE HIV PROTEASE INHIBITOR, L-754,394, Journal of heterocyclic chemistry, 32(4), 1995, pp. 1283-1287
A practical synthesis of 5-(chloromethyl)furo[2,3-b]pyridine (10), the
side chain used to incorporate a key pharmacophore of the HIV proteas
e inhibitor, L-754,394, is described. The synthesis was accomplished i
n ten steps and in 15% overall yield from commercially available methy
l 2-furoate.