反应详情

The title compound is prepared by the procedure of Example 32 using 60 g of product from Example 41, 480 ml methyl alcohol, 190 ml of ethyl alcohol, 28.5 ml of water and 26.7 g of potassium hydroxide. The residue is recrystallized from chloroform/hexane to give 47 g of the desired product as white crystals.

1. customThe residue is recrystallized from chloroform/hexane