Tetrabutylammonium Fluoride → (1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(3-fluoro-4-(methoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysene-3a-carboxylic acid

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[F:1][C:2]1[CH:3]=[C:4]([C:12]2[C:13]([CH3:50])([CH3:49])[C@H:14]3[C@:27]([CH3:30])([CH2:28][CH:29]=2)[C@@H:26]2[C@:17]([CH3:48])([C@@:18]4([CH3:47])[C@H:23]([CH2:24][CH2:25]2)[C@H:22]2[C@H:31]([C:34]([CH3:36])=[CH2:35])[CH2:32][CH2:33][C@:21]2([C:37]([O:39]CC2C=CC=CC=2)=[O:38])[CH2:20][CH2:19]4)[CH2:16][CH2:15]3)[CH:5]=[CH:6][C:7]=1[C:8]([O:10][CH3:11])=[O:9].C([SiH](C)C)(C)(C)C.CCCC[N+](CCCC)(CCCC)CCCC.[F-]>ClCCCl.O1CCOCC1.Cl.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:1][C:2]1[CH:3]=[C:4]([C:12]2[C:13]([CH3:50])([CH3:49])[C@H:14]3[C@:27]([CH3:30])([CH2:28][CH:29]=2)[C@@H:26]2[C@:17]([CH3:48])([C@@:18]4([CH3:47])[C@H:23]([CH2:24][CH2:25]2)[C@H:22]2[C@H:31]([C:34]([CH3:36])=[CH2:35])[CH2:32][CH2:33][C@:21]2([C:37]([OH:39])=[O:38])[CH2:20][CH2:19]4)[CH2:16][CH2:15]3)[CH:5]=[CH:6][C:7]=1[C:8]([O:10][CH3:11])=[O:9]