反应详情

The title compound is prepared by the procedure of Example 27 using 1.1 g of product from Example 20, 0.431 g of product from Example 14, 0.145 g of washed 50% sodium hydride and 12 ml of tetrahydrofuran. The reaction is stirred at room temperature for 21 hours followed by heating at reflux temperature for 51/2 hours. The residue is purified by column chromatography (silica gel: 5% methyl alcohol/ethyl acetate) to give 0.535 g of the desired product. The spectral data indicates the presence of 2 rotomers.

1. temperatureby heating
2. temperatureat reflux temperature for 51/2 hours
3. customThe residue is purified by column chromatography (silica gel: 5% methyl alcohol/ethyl acetate)