反应详情

Add Triethylamine to a solution of Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-bromo-butyrate (Step E) in carbon tetrachloride. After stirring approximately for 4 hours, the mixture can be filtered through a pad of silica gel few times, and concentrate to give the title compound.

1. filtrationthe mixture can be filtered through a pad of silica gel few times
2. concentrationconcentrate