Acetyl chloride → N-(5-(4-(1-acetylpiperidin-4-yloxy)-pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide

HRID 1182966Notes

Reaction equation

HRID 1182966 reaction equation
[NH:1]1[CH2:6][CH2:5][CH:4]([O:7][C:8]2[C:9]3[N:17]=[C:16]([C:18]4[CH:19]=[C:20]([NH:24][S:25]([C:28]5[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=5)(=[O:27])=[O:26])[CH:21]=[N:22][CH:23]=4)[CH:15]=[CH:14][C:10]=3[N:11]=[CH:12][N:13]=2)[CH2:3][CH2:2]1.[C:34](Cl)([CH3:36])=[O:35]>C(Cl)Cl.O>[C:34]([N:1]1[CH2:6][CH2:5][CH:4]([O:7][C:8]2[C:9]3[N:17]=[C:16]([C:18]4[CH:19]=[C:20]([NH:24][S:25]([C:28]5[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=5)(=[O:26])=[O:27])[CH:21]=[N:22][CH:23]=4)[CH:15]=[CH:14][C:10]=3[N:11]=[CH:12][N:13]=2)[CH2:3][CH2:2]1)(=[O:35])[CH3:36]

Participants

5

Reactant 2

HCID 6367Acetyl chlorideHCID 66558112N-(5-(4-(piperidin-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide

Product 1

HCID 66558113N-(5-(4-(1-acetylpiperidin-4-yloxy)-pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamideYield 7.8%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of N-(5-(4-(piperidin-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzene-sulfonamide (0.082 g, 0.177 mmol) in DCM (0.886 ml) was added TEA (0.062 ml, 0.443 mmol) at room temperature. After stiffing for 2 hours at room temperature, AcCl (0.019 ml, 0.266 mmol) was added to the mixture at 0° C. After stiffing overnight at room temperature, the reaction mixture was diluted with water and extracted with CH2Cl2. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by prep TLC (DCM:MeOH=20:1) to give N-(5-(4-(1-acetylpiperidin-4-yloxy)-pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide (0.007 g, 7%) as a white solid. 1H-NMR (CDCl3, Varian 400 MHz) δ 2.05-2.18 (2H, m), 2.19 (3H, s), 3.53-3.59 (2H, m), 3.65-3.76 (2H, m), 3.89-3.40 (2H, m), 5.74-8.79 (1H, m), 7.44-7.48 (2H, m), 7.53-7.57 (1H, m), 7.86-7.89 (2H, m), 8.23 (1H, d, J=8.8 Hz), 8.36 (1H, d, J=8.8 Hz), 8.46 (1H, d, J=2.8 Hz), 8.53 (1H, d, J=2.4 Hz), 8.84 (1H, s), 9.12 (1H, d, J=1.6 Hz). m/z=505.1 [M+1]+.

Workup

  1. waitAfter stiffing overnight at room temperature
  2. extractionextracted with CH2Cl2
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by prep TLC (DCM:MeOH=20:1)

Sources & evidence

ORD record
ord-d12862847229435ea3e9364c996323e7
Source dataset
uspto-grants-2014_03
Patent number
US08664230B2

Reaction notes

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