ethyl 3-[3-(3-hydroxy-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthyl)-4-methoxyphenyl]acrylate 、 4-methoxymethoxybenzyl chloride 以obtained above, 3.0 g (87%) of the expected compound的产率得到3-{4-methoxy-3-[3-(4-methoxymethoxybenzyloxy)-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthyl]phenyl}acrylic acid