5-Acetyl-14-hydroxy-6,11-dimethyl-9,19-dioxaheptacyclo[14.5.2.0~1,10~.0~2,6~.0~8,10~.0~11,16~.0~17,21~]tricos-22-ene-18,20-dione

4H,10H-3b,12b-Ethenocyclopent[1,2]oxireno[4,4a]phenanthro[9,10-c]furan-1,3-dione, 10-acetyl-3a,5,6,7,7a,8a,9,9a,11,12,12a,12c-dodecahydro-5-hydroxy-7a,9a-dimethyl-

5-Acetyl-14-hydroxy-6,11-dimethyl-9,19-dioxaheptacyclo[14.5.2.0~1,10~.0~2,6~.0~8,10~.0~11,16~.0~17,21~]tricos-22-en-18,20-dion

5-Acetyl-14-hydroxy-6,11-dimethyl-9,19-dioxaheptacyclo[14.5.2.0~1,10~.0~2,6~.0~8,10~.0~11,16~.0~17,21~]tricos-22-ene-18,20-dione

5-Acétyl-14-hydroxy-6,11-diméthyl-9,19-dioxaheptacyclo[14.5.2.0~1,10~.0~2,6~.0~8,10~.0~11,16~.0~17,21~]tricos-22-ène-18,20-dione