19229-53-9 Madmeg Methyl-2-acetamido-2-deoxy-3-O-(1-(methoxycarbonyl)ethyl)glucopyranoside Muramic acid methyl glycoside alpha-D-Glucopyranoside, methyl 2-(acetylamino)-2-deoxy-3-O-(2-methoxy-1-methyl-2-oxoethyl)-, (S)-