Ammonia → HCID 56839567, compound

HRID 537044Notes

Reaction equation

HRID 537044 reaction equation
[C:1]([NH:4][C:5]1[CH:10]=[C:9]([C:11]2[O:12][C:13]([C:23](O)=[O:24])=[C:14]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[Cl:22])[N:15]=2)[C:8]([CH3:26])=[CH:7][N:6]=1)(=[O:3])[CH3:2].C[N:28](C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.N>C(Cl)Cl>[C:1]([NH:4][C:5]1[CH:10]=[C:9]([C:11]2[O:12][C:13]([C:23]([NH2:28])=[O:24])=[C:14]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[Cl:22])[N:15]=2)[C:8]([CH3:26])=[CH:7][N:6]=1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 222AmmoniaHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 66749588HCID 66749588, compound

Product 1

HCID 56839567HCID 56839567, compoundYield 15%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a round bottom flask was added 2-[2-(acetylamino)-5-methylpyridin-4-yl]-4-(2-chlorophenyl)-1,3-oxazole-5-carboxylic acid (0.12 g, 0.33 mmol), DCM (4 mL), TBTU (0.42 g, 1.3 mmol), and TEA (0.35 mL, 2.5 mmol). The mixture was allowed to stir for 5 min at rt, and then ammonia (0.5M in dioxane, 32 mL) was added. The resulting mixture was allowed to stir at rt overnight and then concentrated. DCM and water were added. The organic solution was separated, dried over MgSO4, filtered and concentrated. The residue was purified by column chromatography to give 2-[2-(acetylamino)-5-methylpyridin-4-yl]-4-(2-chlorophenyl)-1,3-oxazole-5-carboxamide (0.018 g, 15%). LCMS (FA): m/z=371.4 (M+H).

Workup

  1. stirringto stir at rt overnight
  2. concentrationconcentrated
  3. additionDCM and water were added
  4. customThe organic solution was separated
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-21f0fbc417bd4462b08101c1300b44d7
Source dataset
uspto-grants-2014_10
Patent number
US08859768B2

Reaction notes

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