17alpha-Acetoxy-2',2',6beta-trifluoro-6beta,7beta-dihydro-16-methylenecyclopropa(6,7)progesterone 3'H-Cyclopropa(6,7)pregna-4,6-diene-3,20-dione, 17-(acetyloxy)-3',3',6-trifluoro-6,7-dihydro-16-methylene-, (6beta,7beta)- 40129-31-5