Cyano-borohydride → HCID 87279952, compound

Participants

Reaction Steps

To a solution of EXAMPLE 139B (120 mg) in tetrahydrofuran (3 mL) and acetic acid (1 mL) was added oxetan-3-one (50.8 mg) and MP-cyanoborohydride (2.15 mmol/g, 150 mg). The mixture was stirred at room temperature overnight. The mixture was filtered. The filtrate was concentrated and the residue was loaded on a silica gel cartridge and eluted with 5-10% 7N NH3 in methanol in dichloromethane to give the title compound. 1H NMR (300 MHz, dimethylsulfoxide-d6) δ 11.62 (s, 1H), 8.51 (d, 1H), 8.20 (d, 1H), 7.99 (d, 1H), 7.74 (m, 1H), 7.48 (m, 3H), 7.35 (d, 2H), 7.05 (d, 2H), 6.66 (dd, 1H), 6.36 (dd, 1H), 6.20 (d, 1H), 4.54 (t, 2H), 4.43 (t, 2H), 3.66 (m, 1H), 3.44 (m, 3H), 3.04 (m, 5H), 2.73 (s, 2H), 2.61 (m, 2H), 2.12 (m, 11H), 1.61 (m, 2H), 1.38 (t, 2H), 0.93 (m, 6H).

Provenance & Evidence