反应详情

To a mixture of racemic (2′S,3S,4′R)-6-chloro-4′-[5-chloro-2-(1-hydroxycarbonyl-1-methyl-ethoxy)-phenyl]-2′-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (30 mg, 0.05 mmol) prepared in Example 1f, EDCl (20 mg, 0.1 mmol), HOBt (16 mg, 0.1 mmol) and DIPEA (40 mg, 0.3 mmol) in THF (1 mL) was added o-methylhydroxylamine hydrochloride (22 mg, 0.25 mmol). The mixture was stirred at room temperature overnight and purified by prep-HPLC to give the title compound as a white solid (11 mg).

1. custompurified by prep-HPLC