(4R)-5,10-Seco-19-norpregna-4,5-diene-3,10,20-trione 1H-Cyclodec(e)indene-6,9-dione, 3-acetyl-11,12-didehydro-2,3,3a,4,5,5a,7,8,12,13,13a,13b-dodecahydro-3a-methyl-, (3S-(3R*,3aR*,5aR*,10S*,13aR*,13bR*))- 60398-19-8 Seco-npdt