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(R)-6-((1E,3Z,5R,7E,9E,11R,12R,13R,14R,15S)-14-(tert-butyl(dimethyl)silyloxy)-3-ethyl-12-hydroxy-5,9,11,13,15-pentamethylheptadeca-1,3,7,9-tetraenyl)-5,6-dihydro-2H-pyran-2-one
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(8E,10E,14Z,16E)-[3S,4R,5R,7R,13R,17(2R),17(6R)]-4-(tert-butyldimethylsilanyloxy)-15-ethyl-17-(6-isopropoxy-3,6-dihydro-2H-pyran-2-yl)-3,5,7,9,13-pentamethyl-6-(trimethylsilanyloxy)heptadeca-8,10,14,16-tetraene
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(R)-6-((1E,3Z,7E,9E)-(5R,11R,12R,13S)-3-Ethyl-12-hydroxy-5,9,11,13-tetramethyl-pentadeca-1,3,7,9-tetraenyl)-5,6-dihydro-pyran-2-one
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(R)-6-[(1E,3Z,7E,9E)-(5R,11R,12R,13S)-12-(tert-Butyl-dimethyl-silanyloxy)-3-ethyl-5,9,11,13-tetramethyl-pentadeca-1,3,7,9-tetraenyl]-5,6-dihydro-pyran-2-one