31511-20-3

(14E)-3-ethyl-7-hydroxy-2,8,12,16-tetramethyl-5,13-dioxo-10-(2-oxoethyl)-4,17-dioxabicyclo[14.1.0]heptadec-14-en-9-yl 2,4-bis-O-(3-carboxypropanoyl)-3,6-dideoxy-3-(dimethylamino)hexopyranoside