for the following products
(6R)-7-Amino-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, diphenylmethyl ester | 7β-amino-7α-methoxy-3-[(1-methyl-1H-tetrazol-5-yl)S-methyl]-3-cephalosporin-en-4-carboxylicaciddiphenylmethylester and 7-MAC
