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(1R,3S,6R,11aS)-7-Allyloxy-6-allyloxymethyl-1-hydroxy-3-(5-hydroxy-2,4-dimethoxy-3-methyl-benzyl)-8,10-dimethoxy-9-methyl-4-oxo-1,3,4,6,11,11a-hexahydro-pyrazino[1,2-b]isoquinoline-2-carboxylic acid tert-butyl ester
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(1R,3S,6R,11aS)-7-Allyloxy-6-allyloxymethyl-3-[5-(tert-butyl-dimethyl-silanyloxy)-2,4-dimethoxy-3-methyl-benzyl]-1-hydroxy-8,10-dimethoxy-9-methyl-4-oxo-1,3,4,6,11,11a-hexahydro-pyrazino[1,2-b]isoquinoline-2-carboxylic acid tert-butyl ester
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7-cyano-6,7,9,14,14a,15-hexahydro-9-(hydroxymethyl)-2,11-dimethoxy-3,12,16-trimethyl-(6S,7R,9R,14aS,15R)-(-)-6,15-imino-4H-isoquino[3,2-b][3]benzazocine-1,4,10,13(5H)-tetrone
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9-[(acetoxy)methyl]-6,7,9,14,14a,15-hexahydro-7-hydroxy-2,11-dimethoxy-3,12,16-trimethyl-(6S,7S,9R,14aS,15R)-(-)-6,15-imino-4H-isoquino[3,2-b][3]benzazocine-1,4,10,13(5H)-tetrone