Sodium cyanoborohydride → HCID 67226839, compound

Participants

Reaction Steps

A suspension of EXAMPLE 40D (22.57 mg) and sodium cyanoborohydride (25 mg) in acetic acid (5 ml) was stirred at room temperature for 2 hours. The product was partitioned between dichloromethane and water. The organic layer was separated, dried over Na2SO4, and concentrated. The crude product was purified by RP HPLC (C8, 30-100 acetonitrile/water/0.1% trifluoroacetic acid). 1H NMR (300 MHz, dimethylsulfoxide-d6) δ 11.56 (s, 1H), 9.60 (s, 1H), 8.66 (t, 1H), 8.57 (d, 1H), 7.85 (dd, 1H), 7.71 (s, 1H), 7.46-7.60 (m, 5H), 7.29-7.42 (m, 3H), 7.25 (d, 1H), 6.95 (s, 1H), 6.82 (s, 1H), 6.73 (d, 1H), 6.36 (s, 1H), 4.32 (bs, 2H), 3.85 (dd, 4H), 3.59 (t, 4H), 3.35 (t, 2H), 3.27 (t, 2H), 3.02 (t, 4H), 1.80-1.99 (m, 1H), 1.62 (d, 2H), 1.15-1.36 (m, 2H).

Provenance & Evidence