496917-94-3 1,3-Dioxaspiro[4.5]dec-7-en-4-one,2-(1,1-dimethylethyl)-8-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]-6-[(1E,3S)-3-hydroxy-2-methyl-1,5-hexadienyl]-9-methyl-, (2R,5S,6S,9R)- 648934-26-3 1-Oxa-6-thiacyclohexadeca-10,13-dien-2-one,4,8-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5,5,7,9,13-pentamethyl-16-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-,(4S,7R,8S,9S,10Z,13Z,16S)-