POLYOXIN A

monocarbamate(ester),(e)-l-noyl)-3-ethylidene

2-azetidinecarboxylicacid,1-(5-(2-amino-2-deoxy-l-xylonamido)-1,5-dideoxy-1-(

3,4-dihydro-5-(hydroxymethyl)-2,4-dioxo-1(2h)-pyrimidinyl)-beta-d-allofuranuro

1-(5-(2-amino-2-deoxy-l-xylonamido)-1,5-dideoxy-1-(3,4-dihydro-5-(hydroxymethyl)-2,4-dioxo-1(2h)-pyr2-azetidinecarboxylic aci