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  • (1S,2R,4R,5R,7R,9S,10R,13R,14R,15R,19S,20S)-18-(Biphenyl-4-carbonyl)-13-ethyl-4,14-dihydroxy-2,4,10,14,19,20-hexamethyl-7-(2,4,6-trimethyl-phenyl)-6,8,12,16-tetraoxa-18-aza-tricyclo[13.3.1.15,9]icosane-11,17-dione

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