[F:1][CH2:2][CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([C:11]2[CH:12]=[C:13]([CH:17]([NH:23][C:24]([C@@H:26]3[CH2:31][CH2:30][CH2:29][N:28]([C:32](=[O:48])[CH2:33][CH2:34][CH:35]4[CH2:40][CH2:39][N:38]([C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:37][CH2:36]4)[CH2:27]3)=[O:25])[CH2:18][C:19]([O:21]C)=[O:20])[CH:14]=[N:15][CH:16]=2)=[CH:7][CH:6]=1.O.O.O.O.O.O.O.O.[OH-].[Ba+2].[OH-]>CO>[C:44]([O:43][C:41]([N:38]1[CH2:39][CH2:40][CH:35]([CH2:34][CH2:33][C:32]([N:28]2[CH2:29][CH2:30][CH2:31][C@@H:26]([C:24]([NH:23][CH:17]([C:13]3[CH:14]=[N:15][CH:16]=[C:11]([C:8]4[CH:9]=[CH:10][C:5]([O:4][CH2:3][CH2:2][F:1])=[CH:6][CH:7]=4)[CH:12]=3)[CH2:18][C:19]([OH:21])=[O:20])=[O:25])[CH2:27]2)=[O:48])[CH2:36][CH2:37]1)=[O:42])([CH3:47])([CH3:46])[CH3:45]76 mg (0.11 mmol) tert-butyl 4-(3-{(3R)-3-[(1-{5-[4-(2-fluoroethoxy)phenyl]pyridin-3-yl}-3-methoxy-3-oxopropyl)carbamoyl]piperidin-1-yl}-3-oxopropyl)piperidine-1-carboxylate were dissolved in 14 ml methanol. 358.5 mg (1.14 mmol) barium hydroxide octahydrate were added. The mixture was stirred at room temperature for 20 hours and then concentrated to give 3-({[(3R)-1-{3-[1-(tert-butoxycarbonyl)piperidin-4-yl]propanoyl}piperidin-3-yl]carbonyl}amino)-3-{5-[4-(2-fluoroethoxy)phenyl]pyridin-3-yl}propanoic acid.
Wird geladen…