Cesium carbonate → HCID 18376608, compound

HRID 844183Notes

Reaction equation

HRID 844183 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:35])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([OH:17])[C:11]=2[NH:18][C:19]([C:21]2[S:22][CH:23]=[C:24]([CH2:27][N:28]3[CH2:33][CH2:32][N:31]([CH3:34])[CH2:30][CH2:29]3)[C:25]=2[Cl:26])=[O:20])=[N:6][CH:7]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:42]([O:44][CH2:45][CH2:46]Br)[CH3:43]>CN(C=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:35])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([O:17][CH2:43][CH2:42][O:44][CH2:45][CH3:46])[C:11]=2[NH:18][C:19]([C:21]2[S:22][CH:23]=[C:24]([CH2:27][N:28]3[CH2:33][CH2:32][N:31]([CH3:34])[CH2:30][CH2:29]3)[C:25]=2[Cl:26])=[O:20])=[N:6][CH:7]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 611412-Bromoethyl ethyl etherHCID 9959365HCID 9959365, compound

Product 1

HCID 18376608HCID 18376608, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of N-(5-chloropyridin-2-yl)-2-[((4-((4-methylpiperazin-1-yl)methyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-hydroxy-5-chlorobenzamide (2.0 g, 3.6 mmol) in DMF (20 mL) were added cesium carbonate (8.0 g, 25 mmol) and 2-bromoethyl ethyl ether (0.71 g, 4.6 mmol). The suspension was heated at 60° C. for 16 hours. The mixture was cooled to ambient temperature and filtered, and the filtrate was acidified with trifluoroacetic acid. Purification by HPLC on a C18 Dynamax column acetonitrile in water gradient with 0.1% trifluoroacetic acid afforded N-(5-chloropyridin-2-yl)-2-[((4-((4-methylpiperazin-1-yl)methyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-(2-ethoxyethoxy)-5-chlorobenzamide, trifuoroacetic acid salt as a white solid; NMR (DMSO-d6/TFA) 11.9 (s, 1), 9.4 (s, 1), 8.3 (d, 1), 8.2 (s, 1), 8.1 (d, 1), 7.9 (dd, 1), 7.4 (s, 1), 7.3 (s, 1), 4.4 (s, 2), 4.2 (t, 2), 3.7 (t, 2), 3.5 (q, 2), 3.5 (br, 8), 2.9 (s, 3), 1.0 (t, 3) ppm.

Workup

  1. temperatureThe mixture was cooled to ambient temperature
  2. filtrationfiltered
  3. customPurification by HPLC on a C18 Dynamax column acetonitrile in water gradient with 0.1% trifluoroacetic acid

Sources & evidence

ORD record
ord-5da2f2a6503a476cbd8e0f0e3d76090e
Source dataset
uspto-grants-2002_04
Patent number
US06380221B1

Reaction notes

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