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

HRID 1942807Notes

Reaction equation

HRID 1942807 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-d8a0a3301365411a9528788cb5c18c10
Source dataset
uspto-grants-2013_03
Patent number
US08389541B2

Reaction notes

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