(5R,6R,9R,10R,13R,14R)-5,14-di(methoxymethoxy)-24-(p-methoxybenzyloxy)methoxy-6,9,10,13-dioxidotricos-1-yne

(4R,5R,8R,9R,12R,13R)-1-tert-butyldimethylsilyloxy-4,13-di(methoxymethoxy)-23-(p-methoxybenzyloxy)methoxy-5,8,9,12-dioxidotricosane