Chemical Name: [4S-[4R*,7S*,8R*,9R*,13Z,16R*(E)]]-4,8-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5,5,7,9,13-pentamethyl-16-[1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]oxacyclohexadec-13-ene-2,6-dione;(4S,7R,8S,9S,16S,Z)-4,8-bis((tert-butyldimethylsilyl)oxy)-5,5,7,9,13-pentamethyl-16-((E)-1-(2-methylthiazol-4-yl)prop-1-en-2-yl)oxacyclohexadec-13-ene-2,6-dione