Cesium carbonate → HCID 16038109, compound

HRID 1806233Notes

Reaction equation

HRID 1806233 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([C:11]([NH2:13])=[O:12])[CH:10]=1)[NH:7][CH:6]=[C:5]2[CH:14]1[CH2:19][CH2:18][N:17]([S:20]([CH2:23][CH3:24])(=[O:22])=[O:21])[CH2:16][CH2:15]1.C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C(C)(C)OB([C:39]2[CH:40]=[C:41]([CH2:45][NH2:46])[CH:42]=[CH:43][CH:44]=2)O1>O1CCOCC1.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>[NH2:46][CH2:45][C:41]1[CH:40]=[C:39]([C:2]2[CH:3]=[C:4]3[C:8](=[C:9]([C:11]([NH2:13])=[O:12])[CH:10]=2)[NH:7][CH:6]=[C:5]3[CH:14]2[CH2:15][CH2:16][N:17]([S:20]([CH2:23][CH3:24])(=[O:22])=[O:21])[CH2:18][CH2:19]2)[CH:44]=[CH:43][CH:42]=1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 2773206HCID 2773206, compoundHCID 113844275-bromo-3-[1-(ethanesulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide

Product 1

HCID 16038109HCID 16038109, compoundYield 8.5%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 218864351,4-Dioxane--water (1/1)Solvent

Conditions

Temperature
160 °C

Procedure

To a solution of 5-bromo-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide (30.0 mg, 0.072 mmol), Cs2CO3 (95 mg, 0.290 mmol) and 1-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methanamine (82 mg, 0.350 mmol) in dioxane/H2O (2 mL/0.7 mL) was bubbled argon for 5 minutes prior to addition of Pd(PPh3)4 (7.5 mg, 0.0072 mmol). The reaction mixture was heated in a microwave reactor (Smith synthesizer) for 20 minutes at 160° C. The solvent was evaporated, and the residue was partitioned between ethyl acetate and water. The organic layer was washed with brine (10 mL), dried over MgSO4, filtered, concentrated, and purified by reverse phase HPLC method A (water/CH3CN, 0.1% TFA 10-90%) to give the title compound (2.7 mg, 8.5%).

Workup

  1. customThe solvent was evaporated
  2. customthe residue was partitioned between ethyl acetate and water
  3. washThe organic layer was washed with brine (10 mL)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. custompurified by reverse phase HPLC method A (water/CH3CN, 0.1% TFA 10-90%)

Sources & evidence

ORD record
ord-0946c954c7674e52bda8fad8a2d37fde
Source dataset
uspto-grants-2013_01
Patent number
US08354406B2

Reaction notes

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