1-chloromethyl-2-dimethoxymethyl-3,5-dimethoxybenzene

tert-butyl-{3-[2-(2-dimethoxymethyl-3,5-dimethoxybenzyl)-[1,3]dithian-2-yl]propoxy}dimethylsilane

tert-butyl-{3-[2-(2-dimethoxymethyl-3,5-dimethoxy-4-methylbenzyl)-[1,3]dithian-2-yl]propoxy}dimethylsilane