1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 178523549, compound

HRID 1177942Notes

Reaction equation

HRID 1177942 reaction equation
CCN(C(C)C)C(C)C.[O:10]=[C:11]1[NH:15][C:14]2[CH:16]=[CH:17][C:18]([C:20]3[NH:24][N:23]=[C:22]([C:25]([OH:27])=O)[CH:21]=3)=[CH:19][C:13]=2[O:12]1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[NH2:50][CH2:51][C:52]([N:54]1[CH2:59][CH2:58][N:57]([C:60](=[O:72])[C:61]2[CH:66]=[C:65]([F:67])[CH:64]=[CH:63][C:62]=2[C:68]([F:71])([F:70])[F:69])[CH2:56][CH2:55]1)=[O:53]>CN(C=O)C.O>[F:67][C:65]1[CH:64]=[CH:63][C:62]([C:68]([F:70])([F:69])[F:71])=[C:61]([CH:66]=1)[C:60]([N:57]1[CH2:58][CH2:59][N:54]([C:52](=[O:53])[CH2:51][NH:50][C:25]([C:22]2[CH:21]=[C:20]([C:18]3[CH:17]=[CH:16][C:14]4[NH:15][C:11](=[O:10])[O:12][C:13]=4[CH:19]=3)[NH:24][N:23]=2)=[O:27])[CH2:55][CH2:56]1)=[O:72]

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 669531292-Amino-1-[4-(5-fluoro-2-trifluoromethyl-benzoyl)-piperazin-1-yl]ethanone hydrochlorideHCID 178524109HCID 178524109, compound

Product 1

HCID 178523549HCID 178523549, compoundYield 21.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (120 mg, 0.16 mL, 0.927 mmol) was added to a stirred solution of 5-(2-oxo-2,3-dihydro-benzooxazol-6-yl)-1H-pyrazole-3-carboxylic acid (65 mg, 0.26 mmol) in DMF (2.5 mL). HOBT (37.6 mg, 0.27 mmol) and EDCI (53.4 mg, 0.2783 mmol) were then added at room temperature. After 2 minutes, 2-amino-1-[4-(5-fluoro-2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone hydrochloride salt (98 mg, 0.265 mmol) was added and the resulting mixture was stirred at room temperature overnight. Cold water was then added and the product was extracted with EtOAc and the organic layer was washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure to get the residue. The obtained residue recrystallized from EtOAc to afford 31 mg (21% yield) of 5-(2-Oxo-2,3-dihydro-benzooxazol-6-yl)-1H-pyrazole-3-carboxylic acid {2-[4-(5-fluoro-2-trifluoromethyl-benzoyl)-piperazin-1-yl]-2-oxo-ethyl}-amide. LCMS Purity: 80.27%. 1H NMR (DMSO-d6): δ 13.7 (s, 1H), 11.8 (s, 1H), 8.0 (m, 1H), 7.9 (m, 1H), 7.7 (m, 1H), 7.5 (m, 3H), 7.06 (m, 2H), 4.1 (m, 2H), 3.4 (m, 6H), 3.1 (m, 2H).

Workup

  1. extractionthe product was extracted with EtOAc
  2. washthe organic layer was washed with brine
  3. dry with materialThe organic phase was dried over Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customto get the residue
  6. customThe obtained residue recrystallized from EtOAc

Sources & evidence

ORD record
ord-cf1a8df32cb04fa8bba80d52a0dfc253
Source dataset
uspto-grants-2010_11
Patent number
US07842696B2

Reaction notes

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