6-[4-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-butyl]-3-((2E,4E)-2,5-dimethyl-nona-2,4-dienoyl)-4-hydroxy-1-methyl-1H-pyridin-2-one

methyl 5-(4-hydroxy-2-oxo-3-propionyl-2H-pyran-6-yl)hexylcarbamate