红霉素

Cladinose

L-cladinal

Acetic acid (2S,3S,4S)-6-((3R,4S,5S,6R,7R,9R,10S,11S,12R,13R,14R)-10,12-diacetoxy-14-ethyl-4,7,13-trihydroxy-3,5,7,9,11,13-hexamethyl-2-oxo-oxacyclotetradec-6-yloxy)-5-iodo-4-methoxy-2,4-dimethyl-tetrahydro-pyran-3-yl ester