3-Pyrrolin-2-one, 4-hydroxy-3-(4-methyl-6-(1,2,7-trimethyl-5-oxo-3,9,10- trioxatricyclo(4.3.1.0(sup 2,4))dec-8-yl)-2,4-heptadienoyl)-, (E,E)- 34429-70-4 NSC 107067 Tirandamycin Tirandamycin A Triandamycin U 29275