Acetic Anhydride → HCID 9869726, compound

HRID 352635Notes

Reaction equation

HRID 352635 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][N:5]([C:21]1[CH:26]=[C:25]([CH3:27])[N:24]=[C:23]([N:28]2[CH:32]=[CH:31][N:30]=[CH:29]2)[N:22]=1)[CH2:6][C:7]([NH:9][CH2:10][CH2:11][C:12]1[CH:20]=[CH:19][C:15]2[O:16][CH2:17][O:18][C:14]=2[CH:13]=1)=[O:8].[C:33](OC(=O)C)(=[O:35])[CH3:34]>N1C=CC=CC=1>[C:33]([NH:1][CH2:2][CH2:3][CH2:4][N:5]([C:21]1[CH:26]=[C:25]([CH3:27])[N:24]=[C:23]([N:28]2[CH:32]=[CH:31][N:30]=[CH:29]2)[N:22]=1)[CH2:6][C:7]([NH:9][CH2:10][CH2:11][C:12]1[CH:20]=[CH:19][C:15]2[O:16][CH2:17][O:18][C:14]=2[CH:13]=1)=[O:8])(=[O:35])[CH3:34]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 99109492-[(3-aminopropyl)[2-(1H-imidazol-1-yl)-6-methyl-4-pyrimidinyl]amino]-N-[2-(1,3-benzodioxol-5-yl)ethyl]acetamide

Product 1

HCID 9869726HCID 9869726, compoundYield 41.7%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To 2-[(3-aminopropyl)[2-(1H-imidazol-1-yl)-6-methyl-4-pyrimidinyl]amino]-N-[2-(1,3-benzodioxol-5-yl)ethyl]acetamide (0.3 g, 0.7 mmol) (a compound of formula (Yc6)) dissolved in pyridine (5 mL) was added acetic anhydride (0.10 mL, 1.0 mmol). After stirring for 16 hours, the reaction was partitioned with ethyl acetate and water. The organic layer was separated, washed with water and brine, dried (Na2SO4), and the solvent was removed in vacuo. Chromatography on silica with CH2Cl2 gave 0.14 g of 2-[[3-(acetylamino)propyl][2-(1H-imidazol-1-yl)-6-methyl-4-pyrimidinyl]amino]-N-[2-(1,3-benzodioxol-5-yl)ethyl]acetamide, a compound of formula (Yc7); NMR (DMSO-d6) 8.4 (s, 1), 8.05 (t, 2), 7.85 (t, 1) 7.8 (s, 1), 7.05 (s, 1), 6.7 (m, 2), 6.6 (m, 1), 6.2 (s, 1), 5.9 (s, 2), 4.1 (m, 2), 3-3.6 (m, 6), 2.6 (m, 2), 2.3 (m, 3), 1.8 (s, 3), 1.65 (m, 2) ppm.

Workup

  1. customthe reaction was partitioned with ethyl acetate and water
  2. customThe organic layer was separated
  3. washwashed with water and brine
  4. dry with materialdried (Na2SO4)
  5. customthe solvent was removed in vacuo

Sources & evidence

ORD record
ord-6fa9724842574fe1be0c056f73d7a5d6
Source dataset
uspto-grants-2004_06
Patent number
US06747031B2

Reaction notes

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