11alpha,17-Dihydroxy-3-oxo-17alpha-pregn-4-ene-7alpha,21-dicarboxylic acid 7-methyl ester gamma-lactone 11alpha-Hydroxymexrenone InChI=1/C24H32O6/c1-22-7-4-14(25)10-13(22)11-15(21(28)29-3)19-16-5-8-24(9-6-18(27)30-24)23(16,2)12-17(26)20(19)22/h10,15-17,19-20,26H,4-9,11-12H2,1-3H3/t15-,16+,17-,19+,20+,22+,23+,24?/m1/s methyl rel-(7R,8S,9S,10R,11R,13S,14S)-11-hydroxy-10,13-dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-7-carboxylate spiro[17H-cyclopenta[a]phenanthrene-17,2'(3'H)-furan]-7-carboxylic acid, 1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-11-hydroxy-10,13-dimethyl-3,5'-dioxo-, methyl ester, (7R,8S,9S,10R,11R,1