(S)-2-((4R,5R)-2,2-dimethyl-5-(prop-1-en-2-yl)-1,3-dioxolan-4-yl)propanal

ethyl 2-((2R,3S,4R,5R,6R)-3,4-dihydroxy-6-((R)-1-hydroxy-2-methylallyl)-5-methyltetrahydro-2H-pyran-2-yl)acetate