S-(3-tert-butyldimethylsilyloxybenzyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline

[1-{(S)-1-[3-(tert-Butyl-dimethyl-silanyloxy)-benzyl]-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl}-meth-(E)-ylidene]-((S)-1-methoxymethyl-2-methyl-propyl)-amine