Lithium Hydroxide → HCID 49834899, 화합물

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C(OC([N:8]([CH2:42][CH3:43])[C:9]1[C:10]([CH2:37][O:38]C(=O)C)=[N:11][CH:12]=[C:13]([C:15]2[CH:24]=[CH:23][C:22]3[N:21]=[CH:20][C:19]4[N:25]([CH3:36])[C:26](=[O:35])[N:27]([C:28]5[C:29]([CH3:34])=[N:30][N:31]([CH3:33])[CH:32]=5)[C:18]=4[C:17]=3[CH:16]=2)[CH:14]=1)=O)(C)(C)C.[Li+].[OH-]>O1CCOCC1.CCOC(C)=O>[CH3:33][N:31]1[CH:32]=[C:28]([N:27]2[C:18]3[C:17]4[CH:16]=[C:15]([C:13]5[CH:12]=[N:11][C:10]([CH2:37][OH:38])=[C:9]([NH:8][CH2:42][CH3:43])[CH:14]=5)[CH:24]=[CH:23][C:22]=4[N:21]=[CH:20][C:19]=3[N:25]([CH3:36])[C:26]2=[O:35])[C:29]([CH3:34])=[N:30]1

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실험 절차

A solution of acetic acid 3-(tert-butoxycarbonyl-ethyl-amino)-5-[1-(1,3-dimethyl-1H-pyrazol-4-yl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]quinolin-8-yl]-pyridin-2-ylmethyl ester 155.1.1, 0.041 mmol) in dioxane (0.33 ml) was treated with 1 M aqueous LiOH (0.082 ml) for 1.5 h at rt then was added 1 M aqueous LiOH (0.082 ml) and the RM was stirred for 2 h at rt. The RM was diluted with EtOAc and washed with sat. aqueous NaHCO3, dried over Na2SO4, filtered and evaporated. The residue was taken in DMA and purified by preparative HPLC. The pure fraction was basified with NaHCO3, concentrated and extracted with EtOAc (3×). The combined organic layers were dried over Na2SO4, filtered, evaporated and dried under vacuum to give the title compound as a film. (HPLC: tR 2.10 min (Method A); M+H=444 MS-ES; 1H-NMR (d6-DMSO, 400 MHz) 8.97 (s, 1H), 8.12-8.08 (m, 2H), 7.97-7.90 (m, 2H), 7.63-7.60 (m, 1H), 6.87 (s, 1H), 5.49 (t, 1H), 5.31 (t, 1H), 4.57 (d, 2H), 3.88 (s, 3H), 3.58 (s, 3H), 3.19 (qt, 2H), 1.96 (s, 3H), 1.25 (t, 3H))