<1,4,5,6,8-pentamethoxy-3-(phenylethynyl)-2-naphthyl>-<1-(phenylseleno)cyclopentyl>methanone

[3-(tert-Butyl-diphenyl-silanyloxymethyl)-1,10-dimethoxy-9-phenylsulfanyl-6,7,8,9-tetrahydro-benzo[g]isoquinolin-9-yl]-(1,4,5,6,8-pentamethoxy-3-phenylethynyl-naphthalen-2-yl)-methanol