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?? ???? >(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide
(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide
(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide ??
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(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide C??? ??, ??, ??
(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide ?? ?? ? ???
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(2S,5β)-6α-[(Phenoxyacetyl)amino]-2-(sodiooxycarbonyl)-7-oxo-3α-methyl-3-[(1-methyl-1H-tetrazol-5-yl)thio]-1-aza-4-thiabicyclo[3.2.0]heptane4-oxide ?? ??
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