Acetic Acid → HCID 71293539, compound

HRID 1402539Notes

Reaction equation

HRID 1402539 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH:23]=[CH:24][C:25]=1[NH:26][C:27]([NH:29][C:30]1[CH:35]=[C:34]([CH3:36])[CH:33]=[CH:32][C:31]=1[F:37])=[O:28])[O:5][C:6]1[CH:11]=[CH:10][N:9]=[C:8]([C:12]2[NH:16][CH:15]=[C:14]([C:17]([NH:19][CH2:20][CH:21]=O)=[O:18])[CH:13]=2)[CH:7]=1.[CH2:38]([O:40][C:41]([N:43]1[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]1)=[O:42])[CH3:39].C(O)(=O)C.C([BH3-])#N.[Na+].C1COCC1>CN(C=O)C.O>[F:1][C:2]1[CH:3]=[C:4]([CH:23]=[CH:24][C:25]=1[NH:26][C:27]([NH:29][C:30]1[CH:35]=[C:34]([CH3:36])[CH:33]=[CH:32][C:31]=1[F:37])=[O:28])[O:5][C:6]1[CH:11]=[CH:10][N:9]=[C:8]([C:12]2[NH:16][CH:15]=[C:14]([C:17]([NH:19][CH2:20][CH2:21][N:46]3[CH2:45][CH2:44][N:43]([C:41]([O:40][CH2:38][CH3:39])=[O:42])[CH2:48][CH2:47]3)=[O:18])[CH:13]=2)[CH:7]=1

Participants

8

Reactant 5

HCID 176Acetic AcidHCID 8028TetrahydrofuranHCID 84311-Piperazinecarboxylic acid, ethyl esterHCID 5003444Sodium cyanoborohydrideHCID 71543002HCID 71543002, compound

Product 1

HCID 71293539HCID 71293539, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of 5-{4-[3-fluoro-4-({[(2-fluoro-5-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-N-(2-oxoethyl)-1H-pyrrole-3-carboxamide (200 mg, 0.40 mmol) and 1-ethoxycarbonylpiperazine (158 mg, 1.0 mmol) in anhydrous DMF (10 ml) was added acetic acid (10 mg, 0.17 mmol). The mixture was stirred under nitrogen for 60 minutes, followed by addition of 1M sodium cyanoborohydride solution in THF (1.0 ml, 1.0 mmol). The reaction mixture was stirred for another hour, and poured into 100 ml of water with vigorous stirring. The precipitates were filtered, washed with water, and dried in vacuo to give the crude, which was purified by silica gel chromatography eluting with 5% methanol/chloroform solution to give ethyl 4-(2-{[(5-{4-[3-fluoro-4-({[(2-fluoro-5-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}ethyl)piperazine-1-carboxylate as white solid. Yield: 77 mg, 30%.

Workup

  1. stirringThe reaction mixture was stirred for another hour
  2. filtrationThe precipitates were filtered
  3. washwashed with water
  4. customdried in vacuo
  5. customto give the crude, which
  6. customwas purified by silica gel chromatography
  7. washeluting with 5% methanol/chloroform solution

Sources & evidence

ORD record
ord-75f3a6337d9149c6acb52b65446f0fdd
Source dataset
uspto-grants-2014_12
Patent number
US08906944B2

Reaction notes

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