Synonyms: Antibiotic LL-Z 1220;LL-Z 1220;2-[(1r,2r,4r,7r)-3,8-dioxatricyclo[5.1.0.02,4]oct-5-en-5-yl]-4h-pyran-4-one;(1alpha,2beta,4beta,7alpha)-(-)-2-(3,8-Dioxatricyclo(5.1.0.0(2,4))oct-5-en-5-yl)-4H-pyran-4-one;4H-Pyran-4-one, 2-(3,8-dioxatricyclo(5.1.0(sup 2,4))oct-5-en-5-yl)-, (1-alpha,2-beta,4-beta,7-alpha)-(-)-;AC1L4WWZ;AC1Q6AAT;AR-1D5426;LS-127444