Water → 4-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)-N-(2-(pyridin-4-yl)ethyl)benzamide

HRID 1410029Notes

Reaction equation

HRID 1410029 reaction equation
Cl[C:2]1[N:3]=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[C:14]([O:20][CH3:21])[CH:13]=2)[C:5]2[N:10]=[CH:9][S:8][C:6]=2[N:7]=1.[N:22]1[CH:27]=[CH:26][C:25]([CH2:28][CH2:29][NH:30][C:31](=[O:47])[C:32]2[CH:37]=[CH:36][C:35](B3OC(C)(C)C(C)(C)O3)=[CH:34][CH:33]=2)=[CH:24][CH:23]=1.C([O-])([O-])=O.[Na+].[Na+].O>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:21][O:20][C:14]1[CH:13]=[C:12]([NH:11][C:4]2[C:5]3[N:10]=[CH:9][S:8][C:6]=3[N:7]=[C:2]([C:35]3[CH:36]=[CH:37][C:32]([C:31]([NH:30][CH2:29][CH2:28][C:25]4[CH:26]=[CH:27][N:22]=[CH:23][CH:24]=4)=[O:47])=[CH:33][CH:34]=3)[N:3]=2)[CH:17]=[CH:16][C:15]=1[O:18][CH3:19]

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 68379398N-(2-(pyridin-4-yl)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamideHCID 715341855-chloro-N-(3,4-dimethoxyphenyl)thiazolo[5,4-d]pyrimidin-7-amine

Product 1

HCID 665491384-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)-N-(2-(pyridin-4-yl)ethyl)benzamideYield 31.5%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

To a stirred solution of 5-chloro-N-(3,4-dimethoxyphenyl)thiazolo[5,4-d]pyrimidin-7-amine (100 mg, 0.31 mmol) and N-(2-(pyridin-4-yl)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (140 mg, 0.4 mmol) in 25 mL of 1,4-dioxane were added Na2CO3 (64 mg, 0.6 mmol) and 3 mL of water at room temperature. Then the mixture was degassed with nitrogen for 15 minutes. Pd(PPh3)4 (20 mg, 0.017 mmol) was added in one portion and the reaction mixture was stirred at reflux for 16 hours under nitrogen. The solvent was evaporated and the residue was purified by silica gel chromatography (200-300 mesh, eluting with EtOAc) to give 4-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)-N-(2-(pyridin-4-yl)ethyl)benzamide (50 mg, 31%) as a yellow sold. 1H NMR (300 MHz, DMSO): δ 10.15 (s, 1H), 9.37 (s, 1H), 8.68 (t, 1H, J=5.3 Hz), 8.46-8.42 (m, 4H), 7.94-7.91 (m, 2H), 7.81 (d, 1H, J=2.7 Hz), 7.52-7.47 (m, 1H), 7.27-7.26 (m, 2H), 7.00 (d, 1H, J=8.7 Hz), 4.02 (s, 3H), 4.00 (s, 3H), 3.58-3.52 (m, 2H), 2.89 (t, 2H, J=7.0 Hz). LC-MS: 513 [M+H]+, 511 [M−H]−, tR=1.32 min. HPLC: 97.72% at 214 nm, 96.31% at 254 nm, tR=4.19 min.

Workup

  1. customThen the mixture was degassed with nitrogen for 15 minutes
  2. temperatureat reflux for 16 hours under nitrogen
  3. customThe solvent was evaporated
  4. customthe residue was purified by silica gel chromatography (200-300 mesh, eluting with EtOAc)

Sources & evidence

ORD record
ord-600ae5f4ca7349c6be5e423f5f112ffd
Source dataset
uspto-grants-2014_12
Patent number
US08921383B2

Reaction notes

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