(2R,6R)-6-((1E,3Z,5R,7E,9E,11R,12S,13R,14R,15S)-14-((tert-butyldimethylsilyl)oxy)-3-ethyl-12-hydroxy-5,9,11,13,15-pentamethylheptadeca-1,3,7,9-tetraen-1-yl)-5,6-dihydro-2H-pyran-2-ol

(R)-6-[(1E,3Z,7E,9E)-(5R,11R,12S,13R,14R,15S)-14-(tert-Butyl-dimethyl-silanyloxy)-3-ethyl-12-hydroxy-5,9,11,13,15-pentamethyl-heptadeca-1,3,7,9-tetraenyl]-5,6-dihydro-2H-pyran-2-ol