Cesium carbonate → HCID 87191940, compound

HRID 2089012Notes

Reaction equation

HRID 2089012 reaction equation
Cl[C:2]1[CH:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[CH:14][CH:15]=3)[N:10](S(C3C=CC=CC=3)(=O)=O)[CH:9]=2)[CH:5]=[C:4]([Cl:26])[N:3]=1.[C:27]([CH:30]1[CH2:35][CH2:34][N:33](C(OC(C)(C)C)=O)[CH2:32][CH2:31]1)(=[O:29])[NH2:28].C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.[OH-].[Na+]>O1CCOCC1.CN(C=O)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Cl:26][C:4]1[N:3]=[C:2]([NH:28][C:27]([CH:30]2[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]2)=[O:29])[CH:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[CH:14][CH:15]=3)[NH:10][CH:9]=2)[CH:5]=1

Participants

9

Reactant 5

HCID 10796Cesium carbonateHCID 14798Sodium HydroxideHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 27356461-(tert-Butoxycarbonyl)piperidine-4-carboxamideHCID 866498693-(2,6-dichloropyridin-4-yl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

Product 1

HCID 87191940HCID 87191940, compoundYield 14.5%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalystHCID 6228DimethylformamideSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of Example 7a (0.100 g, 0.247 mmol), tert-butyl 4-carbamoylpiperidine-1-carboxylate (0.0960 g, 0.421 mmol), cesium carbonate (0.105 g, 0.322 mmol), palladium (II) acetate (2.8 mg, 0.012 mmol), and Xantphos (10.7 mg, 0.019 mmol) in dioxane (3 mL) and DMF (0.1 mL) was degassed and heated at 150° C. for 30 minutes in a Biotage microwave reactor. The solvent was evaporated. The residue was treated with 20% brine and extracted with EtOAc. The organic layer was concentrated, dissolved in dioxane (2.5 mL), and treated with 20% sodium hydroxide (0.50 mL, 0.247 mmol). The mixture was heated at 50° C. for 2 hours. After concentration, the residue was triturated with water and filtered. The solid was purified by reverse-phase HPLC as described in Example 56 to give the title compound (12.7 mg) as trifluoroacetic acid salts. 1H NMR (500 MHz, METHANOL-d4) ppm 1.81-2.07 (m, 2H), 2.10-2.23 (m, 2H), 2.84 (m, 1H), 3.01-3.15 (m, 2H), 3.45-3.57 (m, 2H), 7.30 (dd, J=7.93, 4.88 Hz, 1H), 7.48 (d, J=1.22 Hz, 1H), 8.04 (s, 1H), 8.32 (dd, J=4.73, 1.37 Hz, 1H), 8.48 (dd, J=8.09, 1.37 Hz, 1H), 8.54 (s, 1H). MS (ESI+) m/z 356.0 (M+H)+.

Workup

  1. customThe solvent was evaporated
  2. additionThe residue was treated with 20% brine
  3. extractionextracted with EtOAc
  4. concentrationThe organic layer was concentrated
  5. dissolutiondissolved in dioxane (2.5 mL)
  6. temperatureThe mixture was heated at 50° C. for 2 hours
  7. concentrationAfter concentration
  8. customthe residue was triturated with water
  9. filtrationfiltered
  10. customThe solid was purified by reverse-phase HPLC

Sources & evidence

ORD record
ord-cf578f6af2714ee9b0a4398d38ecfd75
Source dataset
uspto-grants-2013_05
Patent number
US08435980B2

Reaction notes

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