Hydrochloric Acid → HCID 68297495, compound

Participants

Reaction Steps

5-Bromo-2-{[methoxycarbonylmethyl-(toluene-4-sulfonyl)-amino]-methyl}-6-oxo-1-phenethyl-1,6-dihydro-pyridine-3-carboxylic acid methyl ester (371 mg, 0.628 mmol) was dissolved in 10 mL of MeOH and placed in ice bath. NaOMe solution (0.43 mL, 1.88 mmol, 25 wt % in MeOH) was added and the mixture was stirred for 16 h at r.t. 1 M HCl was added to acidify the mixture, followed by addition of 50 mL of brine. The resulting suspension was extracted with CH2Cl2. The organic layer was dried over MgSO4 and concentrated. The crude product was purified twice by silica gel chromatography (first eluted with 5-60% EtOAc/hexanes+2% AcOH, then with 0-20% EtOAc/CH2Cl2) to give 166 mg of the title compound. MS: (+) m/z 403.13, 405.14 (M+1, 79/81Br).

Provenance & Evidence