N-(N-ACETYL-4-O-(2-(ACETYLAMINO)-2-DEOXY-.BETA.-D-GLUCOPYRANOSYL)-1,6-ANHYDRO-.BETA.-MURAMOYL)-L-ALANYL-D-.GAMMA.-GLUTAMYL-(6R)-6-CARBOXY-L-LYSYL-D-ALANINE
n-(n-acetyl-4-o-(2-(acetylamino)-2-deoxy-.beta.-d-glucopyranosyl)-1,6-anhydro-.beta.-muramoyl)-l-alanyl-d-.gamma.-glutamyl-(6r)-6-carboxy-l-lysyl-d-alanine