(4S,5R,6R,7R,8S,9S,10R)-4,6-bis-[(benzyloxy)methoxy]-10-methoxy-8-methoxymethoxy-5,7,9-trimethyl-11-trityloxy-undec-2-enoic acid methyl ester

(3S,4S,5R,6R,7R,8S,9S,10R)-4,6-bis-[(benzyloxy)methoxy]-10-methoxy-8-methoxymethoxy-3,5,7,9-tetramethyl-11-trityloxyundecanoic acid methyl ester

(2S,3S,4S,5R,6R,7R,8S,9S,10R)-4,6-bis-[(benzyloxy)methoxy]-2-hydroxy-10-methoxy-8-methoxymethoxy-3,5,7,9-tetramethyl-11-trityloxyundecanoic acid methyl ester