反应详情

In the same manner as in the case of synthesis of Compound 30, a residue was given from 4-hydroxybenzoic acid (0.33 g, 2.4 mmol), the compound produced in Example 17 (0.83 g, 2.0 mmol), triethylamine (0.28 mL, 2.0 mmol), WSC.HCl (0.46 g, 2.4 mmol) and CH2Cl2 (10 mL). The oily residue was crystallized from petroleum ether to give the Compound 56 (0.61 g, 61%).

1. customThe oily residue was crystallized from petroleum ether