4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-, diphenylmethyl ester,4,4-dioxide, [2S-(2a,3b,5a)]-;1H-1,2,3-Triazole,4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid deriv.;
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