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

HRID 239439Notes

Reaction equation

HRID 239439 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-4ebd5fc6343e4078816220c38f8ad816
Source dataset
uspto-grants-2014_02
Patent number
US08642759B2

Reaction notes

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