反应详情

To a mixed solution of the compound (0.94 g) obtained in Example 783, the compound (0.48 g) obtained in Step 5 and chloroform (2.8 ml) was added N,N-diisopropylethylamine (0.30 ml) at room temperature. The mixture was stirred at room temperature for 30 min, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:chloroform=1:2) to give the title compound (1.3 g).

1. concentrationconcentrated under reduced pressure
2. customThe residue was purified by silica gel column chromatography (ethyl acetate:chloroform=1:2)