Tetrahydrofuran → HCID 68188992, compound

Participants

Reaction Steps

A reaction mixture containing 0.25 g (1.0 mmol) of (R)-4-(4-fluorophenyl)-2,8-diazaspiro[4.5]decan-1-one, 0.25 g (1.44 mmol) of the (S)-tert-butyl 1-oxopropan-2-ylcarbamate, 2 mL of THF, 1 mL of DCM, and 1 g (2.5 mmol) of MP-sodium triacetoxyborohydride resin was rotated overnight. The reaction mixture was filtered and the solvents were removed under reduced pressure. The residue was subjected to silica gel chromatography to give 250 mg (61%) of tert-butyl (S)-1-((R)-4-(4-fluorophenyl)-1-oxo-2,8-diazaspiro[4.5]decan-8-yl)propan-2-ylcarbamate as a colorless oil. 1HNMR (400 MHz, CD3OD) δ ppm 7.35-7.31 (m, 2H), 7.10-7.06 (m, 2H), 3.85 (brs, 1H), 3.73-3.68 (m, 1H), 3.55-3.51 (m, 2H), 3.39-3.27 (m, 1H), 3.10-2.87 (m, 2H), 2.78-2.59 (m, 3H), 2.01-1.72 (m, 5H), 1.42 (s, 9H), 1.32-1.20 (m, 1H), and 1.11 (d, 3H, J=2.4 Hz); LCMS m/z: 406.2 (M+H)+.

Provenance & Evidence