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(1S,10S,14R)-5-Methoxy-4,7,10,13,14-pentamethyl-11,16-dioxo-6-(2,2,2-trichloroethoxycarbonyl)-2,15,17-trioxatetracyclo[8.7.0.01,14.03,8]heptadeca-3,5,7,12-tetraene-12-carboxylic acid


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