tert-butyl N-((2R)-1-hydroxypropan-2-yl)carbamate → (R)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chloro-6-fluorobenzonitrile

Participants

Reaction Steps

(R)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chloro-6-fluorobenzonitrile was prepared using the method of Example 202 starting from 2-chloro-6-fluoro-4-(1H-pyrazol-3-yl)benzonitrile (5.0 g, 22.56 mmol) and (R)-tert-butyl (1-hydroxypropan-2-yl)carbamate (7.91 g, 45.1 mmol). The product was evaporated to dryness. Yield 70.5%. 1H-NMR (400 MHz; DMSO): δ 0.96 (d, 3H), 3.20-3.30 (m, 1H), 4.00-4.10 (m, 2H), 7.03 (d, 1H), 7.85-7.91 (m, 2H), 7.99 (m, 1H).

Provenance & Evidence