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(2007/10/02)Acetic acid 6-acetylamino-4-hydroxy-3-methyl-5,8-dioxo-1-(2-oxo-propyl)-5,8-dihydro-naphthalen-2-yl ester
N-(5-Allyl-6,8-dihydroxy-7-methyl-1,4-dioxo-1,4-dihydro-naphthalen-2-yl)-acetamide
Acetic acid 6-acetylamino-4-hydroxy-3-methyl-5,8-dioxo-1-(2-oxo-propionyl)-5,8-dihydro-naphthalen-2-yl ester
Acetic acid 6-acetylamino-1-allyl-4-hydroxy-3-methyl-5,8-dioxo-5,8-dihydro-naphthalen-2-yl ester