Toluene → HCID 86709918, compound

Temperature

5 °C

Sodium hydride (60% in mineral oil, 706 mg, 17.65 mmol) was washed with dry ether (2×20 mL) and then suspended in dry THF (30 mL) and cooled with ice-water. Crude N-cyclopropyl-2-phenylacetamide from the last step in THF (5 mL) was added dropwise at 5° C. to the sodium hydride suspension. The reaction mixture was stirred at 5° C. for 20 min. A solution of propargyl bromide in toluene (80% wt., 2.68 mL, 24.06 mmol) was added dropwise with a syringe. The ice bath was removed and the mixture was stirred at room temperature overnight. The mixture was poured into ice-water (100 mL) and extracted with DCM (3×100 mL). The organic phases were combined and washed with brine (2×50 mL), dried with anhydrous MgSO4, filtered and evaporated to dryness, then purified by silica gel column chromatography, eluting with MeOH/DCM (0-2%) to give the title compound (2.05 g, 58.8% yield), LRMS ESI (M+H+) 214.

1. customThe ice bath was removed
2. stirringthe mixture was stirred at room temperature overnight
3. additionThe mixture was poured into ice-water (100 mL)
4. extractionextracted with DCM (3×100 mL)
5. washwashed with brine (2×50 mL)
6. dry with materialdried with anhydrous MgSO4
7. filtrationfiltered
8. customevaporated to dryness
9. custompurified by silica gel column chromatography
10. washeluting with MeOH/DCM (0-2%)

ORD record

ord-a197b42279fd41d1ac0c241fb40b02fe

Source dataset

uspto-grants-2015_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09067963B2