(S)-(-)-Lactamide → HCID 86717529, compound

A mixture of (2S)-2-hydroxypropanamide (86.6 mg, 0.972 mmol) and triethyloxonium tetrafluoroborate (185 mg, 0.972 mmol) in THF (2 mL) was stirred at room temperature for 2 h. The solvent was removed and the residue dissolved in ethanol (0.50 mL) and added to a suspension of {(2R,5S)-5-[(6-aminothieno[3,2-b]pyridin-7-yl)amino]tetrahydro-2H-pyran-2-yl}methanol (65.0 mg, 0.233 mmol) in ethanol (1.8 mL). The mixture was stirred at 80° C. for 1 h. The mixture was cooled to room temperature, diluted with methanol, and purified with prep-LCMS (XBridge C18 column, eluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min) to give the desired product as white solid (45 mg, 58%). LCMS calculated for C16H20N3O3S (M+H)+: m/z=334.1. Found: 334.

1. customThe solvent was removed
2. dissolutionthe residue dissolved in ethanol (0.50 mL)
3. stirringThe mixture was stirred at 80° C. for 1 h
4. temperatureThe mixture was cooled to room temperature
5. custompurified with prep-LCMS (XBridge C18 column
6. washeluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min)

ORD record

ord-9f401e17b267446e9b682a0297cba2c1

Source dataset

uspto-grants-2015_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09181271B2