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(1R,2S,3R,4R,5E)-3-(acetyloxy)-6-[formyl(methyl)amino]-1-{(3S,4S)-5-[(10S,11R,13E,16S,20R,21R,22S,24Z)-16-hydroxy-10,22-dimethoxy-11,21-dimethyl-12,18-dioxo-3,7,19,27-tetraoxa-29,30,31-triazatetracyclo[24.2.1.1~2,5~.1~6,9~]hentriaconta-1(28),2(31),4,6(30)