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4-HYDROXY-4-(3-???-??)-2-??-BUT-3-?????????

4-HYDROXY-4-(3-???-??)-2-??-BUT-3-????????? ??? ???

???(??):: Methyl 4-hydroxy-4-(3-nitrophenyl)-2-oxobut-3-enoate;Methyl (3z)-4-hydroxy-4-(3-nitrophenyl)-2-oxobut-3-enoate;4-HYDROXY-4-(3-NITRO-PHENYL)-2-OXO-BUT-3-ENOIC ACID METHYL ESTER;3-Butenoic acid, 4-hydroxy-4-(3-nitrophenyl)-2-oxo-, methyl ester

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4-HYDROXY-4-(3-???-??)-2-??-BUT-3-????????? ??

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2-OXO-4-PHENYL-BUT-3-ENOIC ACID 4-HYDROXY-4-(3-NITRO-PHENYL)-2-OXO-BUT-3-ENOIC ACID 4-HYDROXY-4-(3-NITRO-PHENYL)-2-OXO-BUT-3-ENOIC ACID METHYL ESTER