Benzenesulfonyl chloride, 2,4-dichloro- → 2,4-dichloro-N-(5-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide

HRID 1485561Notes

Reaction equation

HRID 1485561 reaction equation
[O: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]([NH2:24])[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.[Cl:25][C:26]1[CH:31]=[C:30]([Cl:32])[CH:29]=[CH:28][C:27]=1[S:33](Cl)(=[O:35])=[O:34]>N1C=CC=CC=1.C(Cl)Cl>[Cl:25][C:26]1[CH:31]=[C:30]([Cl:32])[CH:29]=[CH:28][C:27]=1[S:33]([NH:24][C:20]1[CH:21]=[N:22][CH:23]=[C:18]([C:16]2[CH:15]=[CH:14][C:10]3[N:11]=[CH:12][N:13]=[C:8]([O:7][CH:4]4[CH2:5][CH2:6][O:1][CH2:2][CH2:3]4)[C:9]=3[N:17]=2)[CH:19]=1)(=[O:35])=[O:34]

Participants

5

Reactant 2

HCID 204419Benzenesulfonyl chloride, 2,4-dichloro-HCID 682288595-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-amine2×

Product 1

HCID 665582972,4-dichloro-N-(5-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamideYield 41%

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 5-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-amine (Intermediate 12) (0.0500 g, 0.155 mmol) in pyridine (0.773 ml) was slowly added 2,4-dichlorobenzene-1-sulfonyl chloride (0.0460 g, 0.186 mmol) at 0° C. After stirred for 1 hour at room temperature, the reaction mixture was diluted with DCM and quenched with 1N. aq HCl. The combined organic layers were washed brine, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was recrystallized from EtOAc-Hexane to give 2,4-dichloro-N-(5-(4-(tetrahydro-2H-pyran-4-yloxy)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)benzenesulfonamide (0.0340, 41%) as a purple solid. 1H-NMR (CDCl3, Varian 400 MHz) δ 2.02-2.11 (2H, m), 2.24-2.29 (2H, m), 3.70-3.75 (2H, m), 4.10-4.16 (2H, m), 5.65-5.71 (1H, m), 7.33 (1H, dd, J=1.8, 8.6 Hz), 7.54 (1H, d, J=2.0 Hz), 8.05 (1H, d, J=8.8 Hz), 8.20 (1H, d, J=9.2 Hz), 8.36 (1H, d, J=8.8 Hz), 8.48-8.55 (2H, m), 8.84 (1H, s), 9.15 (1H, d, J=1.6 Hz). m/z=532.0 [M+1]+.

Workup

  1. customat 0° C
  2. customquenched with 1N
  3. washThe combined organic layers were washed brine
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was recrystallized from EtOAc-Hexane

Sources & evidence

ORD record
ord-179aa7fe5dfb47ad8d1cb2a93f6ee9a6
Source dataset
uspto-grants-2016_08
Patent number
US09422298B2

Reaction notes

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