2-((2R,3R,4R,5R,6R)-6-((1S)-2,3-dihydroxy-1-((4-methoxybenzyl)oxy)-2-methylpropyl)-3,4-bis((4-methoxybenzyl)oxy)-5-methyltetrahydro-2H-pyran-2-yl)-N-methoxy-N-methylacetamide

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