Sodium borohydride → HCID 86711404, compound

Participants

Reaction Steps

A solution of 2-(4-acetyl-1H-imidazol-1-yl)-9-cyclopropyl-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one (202 mg, 0.35 mmol, it can be obtained by analogy to example 118) in MeOH (8 mL) was treated with NaBH4 (27 mg, 0.71 mmol) and the mixture was stirred at RT for 10 min. The mixture was then diluted with DCM and H2O, and the aqueous phase was extracte with DCM. The combined org. layers were dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by SFC (column: PPU 5 m, 250×30 mm, 60A, Princeton; eluent: 12-17% MeOH/CO2 over 14 min; flow 100 mL/min; UV detection at 220 nm) and crystallization in Et2O gave the title compound as a solid (41 mg). UPLC-MS: MS 363.2 (M+H+); UPLC rt 0.86 min. 1H NMR (600 MHz, DMSO-d6): δ ppm 0.55-0.71 (m, 2H); 0.88-1.02 (m, 2H); 1.35 (d, J=6.40 Hz, 3H); 1.87-2.05 (m, 1H); 2.99-3.17 (m, 2H); 3.79-3.97 (m, 2H); 4.17-4.31 (m, 2H); 4.55-4.71 (m, 1H); 5.01 (d, J=4.89 Hz, 1H); 7.09-7.25 (m, 2H); 7.25-7.39 (m, 1H); 7.46 (s, 1H); 7.84-7.98 (m, 1H); 8.16 (br s, 1H).

Provenance & Evidence