Sodium Bicarbonate → N-(2-chloro-5-(4-(6-methoxypyridin-3-ylamino)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)-2,4-difluorobenzenesulfonamide

HRID 1182980Notes

Reaction equation

HRID 1182980 reaction equation
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]=[CH:7][N:8]=[C:9]([NH:12][C:13]3[CH:14]=[N:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=3)[C:10]=2[N:11]=1.[Cl:21][C:22]1[C:27]([NH:28][S:29]([C:32]2[CH:37]=[CH:36][C:35]([F:38])=[CH:34][C:33]=2[F:39])(=[O:31])=[O:30])=[CH:26][C:25](B2OC(C)(C)C(C)(C)O2)=[CH:24][N:23]=1.C(=O)(O)[O-].[Na+]>O1CCOCC1>[Cl:21][C:22]1[C:27]([NH:28][S:29]([C:32]2[CH:37]=[CH:36][C:35]([F:38])=[CH:34][C:33]=2[F:39])(=[O:31])=[O:30])=[CH:26][C:25]([C:2]2[CH:3]=[CH:4][C:5]3[N:6]=[CH:7][N:8]=[C:9]([NH:12][C:13]4[CH:14]=[N:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=4)[C:10]=3[N:11]=2)=[CH:24][N:23]=1

Participants

5

Reactant 3

HCID 516892Sodium BicarbonateHCID 866710776-chloro-N-(6-methoxy-3-pyridinyl)-Pyrido[3,2-d]pyrimidin-4-amine2×HCID 86671080N-(2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)-2,4-difluorobenzenesulfonamide2×

Product 1

HCID 66558474N-(2-chloro-5-(4-(6-methoxypyridin-3-ylamino)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)-2,4-difluorobenzenesulfonamideYield 31.1%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

A mixture of 6-chloro-N-(6-methoxypyridin-3-yl)pyrido[3,2-d]pyrimidin-4-amine (Intermediate 22) (0.040 g, 0.139 mmol), N-(2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3-yl)-2,4-difluorobenzenesulfonamide (Intermediate 3) (0.066 g, 0.153 mmol), PdCl2(dppf)-CH2Cl2Adduct (0.011 g, 0.014 mmol) and 1 N aq. sodium bicarbonate (0.278 ml, 0.278 mmol) in dioxane (1.40 ml) subjected to microwave irradiation for 1 hour at 110° C. After cooling to room temperature, the reaction mixture was filtered through Celite and washed with CH2Cl2. The filtrate was concentrated in vacuo. The residue was purified by column chromatography on SiO2 (Hex:EtOAc=1:1) to give N-(2-chloro-5-(4-(6-methoxypyridin-3-ylamino)pyrido[3,2-d]pyrimidin-6-yl)pyridin-3-yl)-2,4-difluorobenzenesulfonamide (0.024 g, 31%) as a yellow solid. 1H-NMR (DMSO-d6, Varian 400 MHz) δ 3.89 (3H, s), 6.94 (3H, s), 6.89-7.05 (1H, d, J=8.4 Hz), 7.17-7.28 (1H, m), 7.50-7.65 (1H, m), 7.74-7.86 (1H, m), 8.17 (1H, dd, J=2.4, 8.8 Hz), 8.33 (1H, d, J=8.8 Hz), 8.36 (1H, d, J=8.8 Hz), 8.57 (1H, d, J=8.8 Hz), 8.62 (2H, s), 8.82 (1H, s), 9.48 (1H, s), 10.33 (1H, s), 10.98 (1H, br s). m/z=556.2 [M+1]+.

Workup

  1. customirradiation for 1 hour at 110° C
  2. filtrationthe reaction mixture was filtered through Celite
  3. washwashed with CH2Cl2
  4. concentrationThe filtrate was concentrated in vacuo
  5. customThe residue was purified by column chromatography on SiO2 (Hex:EtOAc=1:1)

Sources & evidence

ORD record
ord-b6e841ec48a54e1a91ab151f2416b8f3
Source dataset
uspto-grants-2014_03
Patent number
US08664230B2

Reaction notes

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