ethyl 3-[3-(3-hydroxy-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthyl)-4-methoxyphenyl]acrylate 、
1-(chloromethyl)-2-(methoxymethoxy)benzene 以obtained above, 3.2 g (94%) of the expected compound的产率得到3-{4-methoxy-3-[3-(2-methoxymethoxybenzyloxy)-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthyl]phenyl}acrylic acid