反应详情

Following the same procedure as described in Example 1, step 6 (scheme 1), but substituting compound 4 for N-hydroxylamine hydrochloride salt and compound 7 for compound 226, the title compound 227 was obtained as a yellowish solid in 79% yield [purified by flash chromatography (eluent: 5% to 66% MeOH in DCM)].