Acetaldehyde → HCID 16665854, compound

Participants

Reaction Steps

To a solution of EXAMPLE 50F (150 mg) in methanol (6 mL) was added triethylamine (125 mL) and 32 wt/v % acetaldehyde in water (210 mL). The solution was stirred for 1 hour, treated with sodium cyanoborohydride (95 mg), stirred for 3 hours at ambient temperature and at 50° C. for 18 hours and concentrated. The concentrate was purified by HPLC (Zorbax, C-18, 250×2.54 column, mobile phase A: 0.1% TFA in water; B: 0.1% TFA in CH3CN; 0-100% gradient). 1H NMR (CD3OD) δ 1.31-1.36 (m, 3H), 2.30-2.42 (m, 2H), 2.61-2.70 (m, 1H), 3.17-3.29 (m, 2H), 3.34-3.41 (m, 1H), 3.52-3.62 (m, 1H), 3.94-4.01 (m, 1H), 4.64-4.73 (m, 1H), 7.75 (t, J=7.98 Hz, 1H), 7.87 (d, J=7.67 Hz, 1H), 7.93 (d, J=11.35 Hz, 1H), 8.07 (d, J=7.98 Hz, 1H), 8.13 (d, J=7.67 Hz, 1H), 8.28 (t, J=7.52 Hz, 1H).

Provenance & Evidence