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?? ???? >ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate
ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate
ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate ??
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ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate C??? ??, ??, ??
ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate ?? ?? ? ???
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ethyl 4-(furan-2-yl)-2-[(2,2,2-trifluoroacetyl)amino]thiophene-3-carboxylate ?? ??
???( 1)?? ??
