although muramyl dipeptide was not found in the culture medium , at least three glycopeptides structurally related to it were found , namely glcnac-murnac-ala-isogln-dap-ala , glcnac-murnac-ala-isogln-dap , and glcnac-murnac-ala-isogln .
C0001060
muramyl dipeptide
C0017953
glycopeptides