Trifluoroacetic acid → HCID 59559584, compound

HRID 1177851Notes

Reaction equation

HRID 1177851 reaction equation
CCN(C(C)C)C(C)C.[C:10]1([NH:16][C:17]2[CH:25]=[CH:24][C:20]([C:21]([OH:23])=O)=[CH:19][CH:18]=2)[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.[NH2:47][CH2:48][C:49]([N:51]1[CH2:56][CH2:55][N:54]([C:57](=[O:66])[C:58]2[CH:63]=[CH:62][C:61]([Cl:64])=[CH:60][C:59]=2[Cl:65])[CH2:53][CH2:52]1)=[O:50].C(O)(C(F)(F)F)=O>CN(C=O)C.O>[Cl:65][C:59]1[CH:60]=[C:61]([Cl:64])[CH:62]=[CH:63][C:58]=1[C:57]([N:54]1[CH2:53][CH2:52][N:51]([C:49](=[O:50])[CH2:48][NH:47][C:21](=[O:23])[C:20]2[CH:19]=[CH:18][C:17]([NH:16][C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=3)=[CH:25][CH:24]=2)[CH2:56][CH2:55]1)=[O:66]

Participants

9

Reactant 6

HCID 6422Trifluoroacetic acidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2923314-(Phenylamino)benzoic acidHCID 2756402HCID 2756402, compound

Product 1

HCID 59559584HCID 59559584, compoundYield 53%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (133 mg, 0.18 mL, 0.56 mmol) was added drop wise to 4-phenylamino-benzoic acid (preparation as described above) (75 mg, 0.35 mmol) in DMF (4 mL). EDCI (167 mg, 0.87 mmol) and HOBT (56 mg, 0.42 mmol) were added consecutively and, after 10 minutes, 2-amino-1-[4-(2,4-dichloro-benzoyl)-piperazin-1-yl]-ethanone in its TFA salt form (180 mg, 0.42 mmol) was added. The resulting mixture was stirred at room temperature overnight. Cold water was then added, filtered the solid precipitated. The solid was purified by column chromatography (using silica gel of 60-120 mesh and 70% EtOAc in Hexane as eluent) to afford 95 mg (53% yield) of N-{2-[4-(2,4-Dichloro-benzoyl)-piperazin-1-yl]-2-oxo-ethyl}-4-phenylamino-benzamide. LC-MS purity: 96.05%. 1H-NMR (DMSO-D6): δ 8.6 (s, 1H), 8.3 (t, 1H), 7.8 (d, 3H), 7.5 (m, 2H), 7.3 (t, 2H), 7.2 (d, 2H), 7.1 (d, 2H), 6.9 (t, 1H), 4.1 (dd, 2H), 3.6 (m, 4H), 3.5 (m, 2H), 3.2 (m, 2H).

Workup

  1. filtrationfiltered the solid
  2. customprecipitated
  3. customThe solid was purified by column chromatography (using silica gel of 60-120 mesh and 70% EtOAc in Hexane as eluent)

Sources & evidence

ORD record
ord-dec64cf49dae4c5da0fd509b9e141d30
Source dataset
uspto-grants-2010_11
Patent number
US07842696B2

Reaction notes

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