Difenil-eter je supstituiran C1-C10 alkilnim grupama.
erytromycín A9-oxím (E); (3R,4S,5S,6R,7R,9R,10E,11R,12R,13S,14R)-14-etyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexametyl-4-(3-C-metyl-3-O-metyl-2,6-dideoxy-α-L-ribo-hexopyranozyloxy)-6-[3-(dimetylamino)-3,4,6-trideoxy-β-D-xylo-hexapyranozyloxy]-1-oxacyklotetradekán-2,10-dión-10-oxím (E)