2-bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal 、
4-乙氧基-3-甲氧基苯甲醛 以whereby 2-(3-methoxy-4-ethoxy-α-hydroxybenzyl)-3,4,5-trimethoxybenzaldehyde dimethylacetal is obtained as colorless syrup的产率得到2-(3-methoxy-4-ethoxy-α-hydroxybenzyl)-3,4,5-trimethoxybenzaldehyde dimethylacetal