Dimethylformamide → HCID 71262406, compound

Participants

Reaction Conditions

Reaction Steps

To a vial containing a mixture of 4-(4-chloro-6-methylquinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide (200 mg, 0.536 mmol, prepared in analogy to 4-(4-chloro-6-(trifluoromethoxy)quinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide in Example 17-1), tert-butyl (4R)-4-ethenyl-2,2-dimethyl-1,3-oxazolidine-3-carboxylate (146 mg, 0.643 mmol), triethylamine (0.5 mL) and N,N-dimethylformamide (1 mL), which was evacuated and filled with argon, di(tri-tert-butylphosphine)palladium(0) (13.7 mg, 0.0268 mmol) was added. The vial was caped and heated at 110° C. for 30 minutes under microwave irradiation. The reaction mixture was poured into water (30 mL) and extracted with ethyl acetate (20 mL×3). The organic layers were combined, washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by flash column chromatography (eluting with 50% ethyl acetate in hexanes) to afford 180 mg of the desired product as a white solid (yield was 60%).

Provenance & Evidence