(6S,7R,9R,14aR,15R)-1,10-dihydroxy-9-(hydroxymethyl)-2,4,11,13-tetramethoxy-3,12,16-trimethyl-6,7,9,14,14a,15-hexahydro-5H-6,15-epiminobenzo[4,5]azocino[1,2-b]isoquinoline-7-carbonitrile

{(S)-2-((1R,3S)-8-Allyloxy-1-allyloxymethyl-3-formyl-5,7-dimethoxy-6-methyl-3,4-dihydro-1H-isoquinolin-2-yl)-1-[5-(tert-butyl-dimethyl-silanyloxy)-2,4-dimethoxy-3-methyl-benzyl]-2-oxo-ethyl}-methyl-carbamic acid 9H-fluoren-9-ylmethyl ester