L-Alanine, 2-((2-(((5-methyl-2-oxo-1,3-dioxol-4-yl)methoxy)carbonyl)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-en-7-yl)amino)-2-oxo-1-phenylethyl ester, monohydrochloride, (6R-(6alpha,7beta(R*)))-