(2S,3R,4aS,5aR,6aS,8R,9S,10aR,11aS,13aR)-3,9-bis(benzyloxy)-2-(2-(benzyloxy)ethyl)-4a,8-dimethyltetradecahydro-2H-pyrano[3,2-b]pyrano[2',3':5,6]pyrano[2,3-f]oxepine

ethyl 2-((2S,3R,5S,6R)-5-(benzyloxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)acetate