Diisopropylethylamine → HCID 86296367, compound

HRID 930827Notes

Reaction equation

HRID 930827 reaction equation
[F:1][C:2]1[O:6][C:5]([C:7]([OH:9])=O)=[CH:4][CH:3]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[NH2:43][C:44]1[CH:45]=[CH:46][C:47]([Cl:66])=[C:48]([C:50]2[N:51]=[C:52]3[N:57]=[CH:56][C:55]([NH:58][C:59](=[O:64])[O:60][CH:61]([CH3:63])[CH3:62])=[CH:54][N:53]3[CH:65]=2)[CH:49]=1>CN(C=O)C>[Cl:66][C:47]1[CH:46]=[CH:45][C:44]([NH:43][C:7]([C:5]2[O:6][C:2]([F:1])=[CH:3][CH:4]=2)=[O:9])=[CH:49][C:48]=1[C:50]1[N:51]=[C:52]2[N:57]=[CH:56][C:55]([NH:58][C:59](=[O:64])[O:60][CH:61]([CH3:62])[CH3:63])=[CH:54][N:53]2[CH:65]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 213638875-Fluoro-2-furancarboxylic acidHCID 90444845HCID 90444845, compound

Product 1

HCID 86296367HCID 86296367, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

In a 40 mL vial isopropyl (2-(5-amino-2-chlorophenyl)imidazo[1,2-a]pyrimidin-6-yl)carbamate (I-9) (30 mg, 0.09 mmol) was dissolved in DMF (Volume: 0.3 mL). 5-fluorofuran-2-carboxylic acid (11 mg, 0.09 mmol) was then added to the reaction mixture followed by HATU (65.98 mg, 0.17 mmol) and (iPr)2NEt (0.043 mL, 0.26 mmol). The reaction was stirred at rt for 8 hrs. The reaction was monitored was LCMS which indicated the reaction was complete with a new peak of desired mass was observed (M+H=468.1). The reaction mixture was quenched with water and extracted with ethyl acetate (3×5 mL). Combined all organics, dried over sodium sulfate and concentrated under reduce pressure. The crude reaction purified by reverse phase HPLC yeild 2-(2-chloro-5-(5-fluorofuran-2-carboxamido)phenyl)imidazo[1,2-a]pyrimidin-6-yl)carbamate (1). The TFA salt was neutralized to a free base by a HCO3 column. 1H NMR (400 MHz, DMSO) δ 10.41 (s, 1H), 10.01 (s, 1H), 9.31 (s, 1H), 8.69 (s, 1H), 8.61 (d, J=2.7, 1H), 8.51 (d, J=2.7, 1H), 7.87 (dd, J=2.7, 8.8, 1H), 7.53 (d, J=8.7, 1H), 7.47 (t, J=3.6, 1H), 6.11 (dd, J=3.7, 7.1, 1H), 5.03-4.85 (m, 1H), 1.29 (d, J=6.2, 6H). M/Z=(458.1M+1). RT=1.64 min.

Workup

  1. customThe reaction mixture was quenched with water
  2. extractionextracted with ethyl acetate (3×5 mL)
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated
  5. customThe crude reaction
  6. custompurified by reverse phase HPLC yeild 2-(2-chloro-5-(5-fluorofuran-2-carboxamido)phenyl)imidazo[1,2-a]pyrimidin-6-yl)carbamate (1)

Sources & evidence

ORD record
ord-692ffe6ee91d44f48e5bfb31dc6331b7
Source dataset
uspto-grants-2016_03
Patent number
US09296754B2

Reaction notes

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