Diisopropylethylamine → HCID 67010076, compound

HRID 1630086Notes

Reaction equation

HRID 1630086 reaction equation
[NH2:1][CH:2]([CH2:19][O:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:3]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:8][CH:7]=1)=[O:4].Cl.[NH:29]1[CH:33]=[C:32]([CH2:34][C:35](O)=[O:36])[N:31]=[CH:30]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>CN(C=O)C>[NH:31]1[C:32]([CH2:34][C:35]([NH:1][CH:2]([CH2:19][O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:3]([NH:5][C:6]2[CH:7]=[CH:8][C:9]([O:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)=[CH:10][CH:11]=2)=[O:4])=[O:36])=[CH:33][N:29]=[CH:30]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 67009332HCID 67009332, compoundHCID 178479752HCID 178479752, compound

Product 1

HCID 67010076HCID 67010076, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A flask was charged with 2-amino-3-benzyloxy-N-(4-phenoxyphenyl)propanamide (150 mg, 0.42 mmoles), prepared as in Reference 5, 1H-imidazol-4-ylacetic acid hydrochloride (81 mg, 0.50 mmoles), HATU (188 mg, 0.50 moles) and DMF (1 mL). DIEA (370 μL, 2.1 mmoles) was added and the mixture was stirred at ambient temperature for 18 hours. The reaction mixture was partitioned between ethyl acetate and deionized H2O. The aqueous layer was separated and extracted with ethyl acetate. The combined organic layer was washed with 5% lithium chloride (3×5 mL), 1N sodium bicarbonate (2×5 mL) and then deionized water (2×5 mL) and concentrated in vacuo. Product was purified from the residue by preparative HPLC (ammonium acetate/acetonitrile). The purified product was taken up into methanol and the solution was neutralized with basic resin, filtered and concentrated in vacuo to give Compound 142, 2-(2-(1H-imidazol-5-yl)acetamido)-3-benzyloxy-N-(4-phenoxyphenyl)propanamide (118 mg, 60% yield), as a white solid. 1H-NMR (400 MHz, CDCl3): 9.23 (s, 1H), 7.53-7.40 (m, 4H), 7.35-7.27 (m, 6H), 7.08 (t, 1H), 7.00-6.92 (m, 3H), 6.87 (s, 1H), 4.77 (m, 1H), 4.55 (dd, 2H), 4.18 (dd, 1H), 3.70-3.58 (m, 3H). MS (EI) for C27H26N4O4. found 471.0 (MH+).

Workup

  1. customThe reaction mixture was partitioned between ethyl acetate
  2. customThe aqueous layer was separated
  3. extractionextracted with ethyl acetate
  4. washThe combined organic layer was washed with 5% lithium chloride (3×5 mL), 1N sodium bicarbonate (2×5 mL)
  5. concentrationconcentrated in vacuo
  6. customProduct was purified from the residue by preparative HPLC (ammonium acetate/acetonitrile)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-486cef3eaca948478d9a82b2de3ed9c0
Source dataset
uspto-grants-2014_07
Patent number
US08791102B2

Reaction notes

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