Trifluoroacetic acid → 1-(3-Fluoro-4-(2-(5-((2-methoxyethylamino)methyl)pyridin-2-yl)thieno[3,2-b]pyridine-7-yloxy)phenyl)urea

HRID 1952477Notes

Reaction equation

HRID 1952477 reaction equation
[F:1][C:2]1[CH:36]=[C:35]([NH:37][C:38]([NH2:40])=[O:39])[CH:34]=[CH:33][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14]3[N:19]=[CH:18][C:17]([CH2:20][N:21]([CH2:29][CH2:30][O:31][CH3:32])C(=O)OC(C)(C)C)=[CH:16][CH:15]=3)[S:13][C:6]=12.C(O)(C(F)(F)F)=O>C(Cl)Cl>[F:1][C:2]1[CH:36]=[C:35]([NH:37][C:38]([NH2:40])=[O:39])[CH:34]=[CH:33][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14]3[CH:15]=[CH:16][C:17]([CH2:20][NH:21][CH2:29][CH2:30][O:31][CH3:32])=[CH:18][N:19]=3)[S:13][C:6]=12

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 57919596Tert-butyl (6-(7-(2-fluoro-4-ureidophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl(2-methoxyethyl)carbamate

Product 1

HCID 252699051-(3-Fluoro-4-(2-(5-((2-methoxyethylamino)methyl)pyridin-2-yl)thieno[3,2-b]pyridine-7-yloxy)phenyl)ureaYield 94.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of compound 288 (0.33 g, 0.581 mmol) in DCM (11.6 mL) was added TFA (0.53 mL, 6.98 mmol, 12 eq.). The reaction mixture was stirred at r.t. for 24 h, concentrated and the residue was purified by Biotage SP1 Flash Purification System (eluent a gradient DCM/MeOH/NH4OH, 95/5/0.1 to 9/1/0.2) to afford 289 as a white solid (0.256 g, 0.548 mmol, 94% yield). Characterization of compound 289 is provided in the Table 6.

Workup

  1. concentrationconcentrated
  2. customthe residue was purified by Biotage SP1 Flash Purification System (eluent a gradient DCM/MeOH/NH4OH, 95/5/0.1 to 9/1/0.2)

Sources & evidence

ORD record
ord-2baff77bf4fa479d8526a9bd45da9fb8
Source dataset
uspto-grants-2013_03
Patent number
US08404846B2

Reaction notes

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