TIRANDAMYCIN

tirandamycin A

3-[(1E,2E,4E,6R)-1-Hydroxy-4-methyl-6-[(1S,4α,6S)-1,2α,7α-trimethyl-5-oxo-3,9,10-trioxatricyclo[4.3.1.02,4]decan-8β-yl]-2,4-heptadien-1-ylidene]-2,4-pyrrolidinedione