AC1L7H8L;91480-77-2;butyl 4-[4-(4-butoxy-4-oxobut-2-enoyl)-3-methylpiperazin-1-yl]-4-oxobut-2-enoate;BUTYL 4-[4-(3-BUTOXYCARBONYLPROP-2-ENOYL)-3-METHYL-PIPERAZIN-1-YL]-4-OXO-BUT-2-ENOATE
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