Trifluoroacetic acid → N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(1-piperazinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide

HRID 1961931Notes

Reaction equation

HRID 1961931 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:18][CH2:17][N:16](C(OC(C)(C)C)=O)[CH2:15][CH2:14]3)=[N:10][C:9]=2[C:26]2[CH:31]=[CH:30][CH:29]=[C:28]([NH:32][S:33]([C:36]3[C:41]([F:42])=[CH:40][CH:39]=[CH:38][C:37]=3[F:43])(=[O:35])=[O:34])[C:27]=2[F:44])[CH:5]=[CH:4][N:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]3)=[N:10][C:9]=2[C:26]2[C:27]([F:44])=[C:28]([NH:32][S:33]([C:36]3[C:37]([F:43])=[CH:38][CH:39]=[CH:40][C:41]=3[F:42])(=[O:35])=[O:34])[CH:29]=[CH:30][CH:31]=2)[CH:5]=[CH:4][N:3]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 579898131,1-Dimethylethyl 4-[5-(2-chloro-4-pyrimidinyl)-4-(3-{[(2,6-difluorophenyl)sulfonyl]amino}-2-fluorophenyl)-1,3-thiazol-2-yl]-1-piperazinecarboxylate

Product 1

HCID 57989651N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(1-piperazinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamideYield 114.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To 1,1-dimethylethyl 4-[5-(2-chloro-4-pyrimidinyl)-4-(3-{[(2,6-difluorophenyl)sulfonyl]amino}-2-fluorophenyl)-1,3-thiazol-2-yl]-1-piperazinecarboxylate (1.13 g, 1.694 mmol) in DCM (20 mL) was treated with TFA (20 mL) at rt for 30 min. The reaction mixture was concentrated and the residue was triturated with DCM and hexane to give (1.10 g, 95% yield) of the title compound of Step B. 1H NMR (400 MHz, DMSO-d6) d ppm 10.95 (br. s., 1H), 9.04 (br. s., 1H), 8.34 (d, J=5.5 Hz, 1H), 7.63-7.76 (m, 1H), 7.42-7.49 (m, 1H), 7.38 (t, J=6.1 Hz, 1H), 7.30-7.36 (m, 1H), 7.26 (t, J=9.2 Hz, 2H), 6.52 (d, J=5.4 Hz, 1H), 3.77 (d, J=4.8 Hz, 4H), 3.27 (br. s., 4H). m/z (ES+): 568 [M+H]+.

Workup

  1. concentrationThe reaction mixture was concentrated
  2. customthe residue was triturated with DCM and hexane

Sources & evidence

ORD record
ord-6ebb378926d14d7a8143264835cc80d9
Source dataset
uspto-grants-2013_04
Patent number
US08415345B2

Reaction notes

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