C(OC(=O)[NH:7][CH2:8][CH:9]1[CH2:14][CH2:13][N:12]([C:15]2[CH:16]=[CH:17][CH:18]=[C:19]3[C:24]=2[N:23]=[C:22]([C:25]2[N:29]4[CH:30]=[CH:31][C:32]([CH:34]([OH:37])[CH2:35][OH:36])=[CH:33][C:28]4=[N:27][N:26]=2)[CH:21]=[CH:20]3)[CH2:11][CH2:10]1)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:7][CH2:8][CH:9]1[CH2:10][CH2:11][N:12]([C:15]2[CH:16]=[CH:17][CH:18]=[C:19]3[C:24]=2[N:23]=[C:22]([C:25]2[N:29]4[CH:30]=[CH:31][C:32]([CH:34]([OH:37])[CH2:35][OH:36])=[CH:33][C:28]4=[N:27][N:26]=2)[CH:21]=[CH:20]3)[CH2:13][CH2:14]1To tert-butyl(1-(2-(7-(1,2-dihydroxyethyl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperidin-4-yl)methylcarbamate (2 mg, 0.004 mmol) in DCM (1 mL) was added TFA (0.5 mL). The reaction was then stirred for 1 hour, then concentrated and purified by flash column chromatography (DCM/MeOH/NH4OH 20:1:0.1), affording the final product as a white solid (0.002 g; quantitative yield). MS ESI (+) m/z 419 (M+1) detected.
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