O-Methylhydroxylamine hydrochloride → HCID 77845421, compound

Participants

Reaction Conditions

Reaction Steps

To a solution compound 2-acetyl-5-(11-fluoro-6H-pyrido[2′,3′:5,6][1,3]oxazino[3,4-a]indol-2-yl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (50 mg, 0.088 mmol) in ethanol (1.5 mL) was added O-methylhydroxylamine hydrochloride (25 mg, 0.26 mmol) and 2 drops pyridine. The resulting mixture was stirred at 70° C. for 2 hours. The solvent was removed under reduced pressure and the residue was purified by prep-HPLC to give the product of (E)-5-(11-fluoro-6H-pyrido[2′,3′:5,6][1,3]oxazino[3,4-a]indol-2-yl)-2-(1-(methoxyimino)ethyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (20 mg, yield: 40%). 1H-NMR (CDCl3, 400 MHz) δ 9.56 (s, 1H), 8.65 (s, 1H), 7.67 (s, 1H), 7.48 (dd, J=10 Hz, 2H), 7.18˜7.23 (m, 2H), 7.10 (d, J=8.0 Hz, 1H), 6.84 (t, J=8.0 Hz, 1H), 5.99 (s, 2H), 4.12 (s, 3H), 3.41 (s, 3H), 2.99 (d, J=4.8 Hz, 3H), 2.66 (s, 3H), 2.41 (s, 3H). MS (M+H)+: 592.

Provenance & Evidence