(R)-tert-Butyl 2-amino-4-methylpentanoate → tert-Butyl N-(3-{4-[6-amino-5-(2,4-difluorobenzoyl)-2-oxopyridin-1(2H)-yl]-3,5-difluorophenoxy}propyl)-D-leucinate

Participants

Reaction Steps

From Intermediate 4F and D-Leucine tert-butyl ester, LCMS purity 95%, m/z 606 [M+H]+, 1H NMR (300 MHz, DMSO), δ: 9.30-9.00 (2H, m), 7.62-7.52 (1H, m), 7.47-7.32 (2H, m), 7.28-7.12 (1H, m), 7.06 (2H, d, J=10.2 Hz), 5.73 (1H, d, J=9.6 Hz), 4.20 (2H, t, J=5.7 Hz), 3.99 (1H, br s), 3.25-2.95 (2H, m), 2.20-2.05 (2H, m), 1.80-1.60 (3H, m), 1.49 (9H, s), 0.95 (6H, d, J=4.8 Hz).

Provenance & Evidence