2-(Tributylstannyl)pyridine → 2,6-Bis-((R)-3-methyl-morpholin-4-yl)-8-pyridin-2-yl-9-(tetrahydro-pyran-2-yl)-9H-purine

HRID 522805Notes

Reaction equation

HRID 522805 reaction equation
Br[C:2]1[N:3]([CH:25]2[CH2:30][CH2:29][CH2:28][CH2:27][O:26]2)[C:4]2[C:9]([N:10]=1)=[C:8]([N:11]1[CH2:16][CH2:15][O:14][CH2:13][C@H:12]1[CH3:17])[N:7]=[C:6]([N:18]1[CH2:23][CH2:22][O:21][CH2:20][C@H:19]1[CH3:24])[N:5]=2.C([Sn](CCCC)(CCCC)[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][N:37]=1)CCC>C1(C)C=CC=CC=1.CCOC(C)=O.[Cl-].[Na+].O.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>[CH3:24][C@@H:19]1[CH2:20][O:21][CH2:22][CH2:23][N:18]1[C:6]1[N:5]=[C:4]2[C:9]([N:10]=[C:2]([C:36]3[CH:41]=[CH:40][CH:39]=[CH:38][N:37]=3)[N:3]2[CH:25]2[CH2:30][CH2:29][CH2:28][CH2:27][O:26]2)=[C:8]([N:11]2[CH2:16][CH2:15][O:14][CH2:13][C@H:12]2[CH3:17])[N:7]=1

Participants

7

Reactant 2

HCID 6077842-(Tributylstannyl)pyridineHCID 895256398-Bromo-2,6-bis-((R)-3-methyl-morpholin-4-yl)-9-(tetrahydro-pyran-2-yl)-9H-purine

Product 1

HCID 895257422,6-Bis-((R)-3-methyl-morpholin-4-yl)-8-pyridin-2-yl-9-(tetrahydro-pyran-2-yl)-9H-purineYield 88%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolventHCID 57417360Sodium chloride; waterSolvent

Conditions

Temperature
120 °C

Procedure

8-Bromo-2,6-bis-((R)-3-methyl-morpholin-4-yl)-9-(tetrahydro-pyran-2-yl)-9H-purine (40 mg, 83 μmol) was dissolved in 2 mL of toluene under argon in a microwave vial, and 2-(tributylstannyl)-pyridine (36 mg, 83 μmol) and Pd(PPh3)4 (4.8 mg, 4.2 μmol) were added. The microwave vial was capped, and the reaction mixture was stirred for 3 hours at 120° C. The vial was cooled to room temperature and opened. The mixture was diluted with EtOAc (20 mL) and brine. The organic layer was separated, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by column chromatography (12 g SiO2, heptane/TBME in a gradient from 4/1 to 2/3) to give the product as a solid (35 mg, 88%).

Workup

  1. additionwere added
  2. customThe microwave vial was capped
  3. temperatureThe vial was cooled to room temperature
  4. customThe organic layer was separated
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by column chromatography (12 g SiO2, heptane/TBME in a gradient from 4/1 to 2/3)

Sources & evidence

ORD record
ord-89f2a9df4ae94a1ca443b9b2bce2c2a4
Source dataset
uspto-grants-2016_05
Patent number
US09334271B2

Reaction notes

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