Sodium triacetoxyborohydride → HCID 89498080, compound

Participants

Reaction Steps

To a solution of EXAMPLE 167F (72 mg) and thiomorpholine 1,1-dioxide (13.5 mg) in dichloromethane (3 mL) was added sodium triacetoxyborohydride (32 mg). The mixture was stirred overnight. The mixture was dissolved in ethyl acetate (200 mL) and washed with 2N aqueous NaOH and brine, and dried over Na2SO4. Filtration and evaporation of the solvent gave crude product which was dissolved in dichloromethane (2 mL) and TFA (2 mL). After stirring overnight, the solvent was evaporated. The residue was purified by reverse phase chromatography using a Gilson system, eluting with 20-80% acetonitrile in 0.1% TFA water solution to provide the title compound. 1H NMR (300 MHz, dimethylsulfoxide-d6) δ ppm 12.86 (s, 1H), 8.04 (d, 1H), 7.79 (d, 1H), 7.62 (d, 1H), 7.42 (m, 5H), 6.97 (d, 1H), 4.96 (s, 2H), 4.10 (s, 3H), 3.53 (m, 8H), 3.02 (t, 2H), 2.13 (s, 3H), 1.43 (m, 10H).

Provenance & Evidence