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(1R,2S,4S,5S,6S,10R,13S,14R,18S,19R,20R)-5-[Tert-butyl(dimethyl)silyl]oxy-1,19-dihydroxy-4,8,8,20-tetramethyl-11-methylidene-18-prop-1-en-2-yl-7,9,15,17-tetraoxapentacyclo[11.7.0.02,6.06,10.014,18]icosan-16-one;dichloromethane


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