2-Hydroxy-N-[(S)-5,6,7,9-tetrahydro-1,2,3-trimethoxy-10-(methylthio)-9-oxobenzo[a]heptalen-7-yl]acetamide;N-[(S)-5,6,7,9-Tetrahydro-1,2,3-trimethoxy-10-methylthio-9-oxobenzo[a]heptalen-7-yl]-2-hydroxyacetamide
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