英文别名
6b,7b; 15b,16b-dimethylen-3-oxo-17a-pregn-4-ene-21,17-carbolactone; dihydrospirorenone; (1aR,5aR,5bS,7aS,8S,8aS,9aS,9bS,9cR,9dR)-5a,7a-dimethyl-1,1a,5,5a,5b,6,7,7a,8a,9,9a,9b,9c,9d-tetradecahydro-3'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthrene-8,2'-furan]-3,5'(4H,4'H)-dione