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(R)-3-[(2R,3R,4R,4aS,9aS)-4-Benzyloxy-3-(4-methoxy-benzyloxy)-3,4,4a,6,9,9a-hexahydro-2H-1,5-dioxa-benzocyclohepten-2-yl]-2-((4aR,6S,7R,9aS)-2,2-dimethyl-6-vinyl-hexahydro-1,3,5-trioxa-benzocyclohepten-7-yloxy)-propionic acid tert-butyl ester
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(3S,4aR,5aS,10aS,11R,11aR)-11-Benzyloxy-3-[(2S,3R,6S,7R)-6-(tert-butyl-diphenyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2-vinyl-oxepan-3-yloxy]-4,4a,5a,6,9,10a,11,11a-octahydro-3H-1,5,10-trioxa-cyclohepta[b]naphthalen-2-one
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11-benzyloxy-3-[6-(tert-butyl-diphenyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2-vinyl-oxepan-3-yloxy]-2-vinyl-2,3,4,4a,5a,6,9,10a,11,11a-decahydro-1,5,10-trioxa-cyclohepta[b]naphthalene
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11-benzyloxy-3-[6-(tert-butyl-diphenyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2-vinyl-oxepan-3-yloxy]-2-methoxy-2-vinyl-2,3,4,4a,5a,6,9,10a,11,11a-decahydro-1,5,10-trioxa-cyclohepta[b]naphthalene
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