Potassium Phosphate, Tribasic → 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-[3-(hydroxymethyl)phenyl]-1H-indole-7-carboxamide

HRID 562017Notes

Reaction equation

HRID 562017 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.[O-]P([O-])([O-])=O.[K+].[K+].[K+].[OH:33][CH2:34][C:35]1[CH:36]=[C:37](B(O)O)[CH:38]=[CH:39][CH:40]=1>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>[CH2:23]([S:20]([N:17]1[CH2:18][CH2:19][CH:14]([C:5]2[C:4]3[C:8](=[C:9]([C:11]([NH2:13])=[O:12])[CH:10]=[C:2]([C:39]4[CH:38]=[CH:37][CH:36]=[C:35]([CH2:34][OH:33])[CH:40]=4)[CH:3]=3)[NH:7][CH:6]=2)[CH2:15][CH2:16]1)(=[O:22])=[O:21])[CH3:24]

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 2734662[3-(Hydroxymethyl)phenyl]boronic acidHCID 113844275-bromo-3-[1-(ethanesulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide

Product 1

HCID 112706553-[1-(ethylsulfonyl)-4-piperidinyl]-5-[3-(hydroxymethyl)phenyl]-1H-indole-7-carboxamideYield 46%

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 (20.0 mg, 0.048 mmol), K3PO4 (21.0 mg, 0.096 mmol) and [3-(hydroxymethyl)phenyl]boronic acid (30.0 mg, 0.193 mmol) in dioxane/H2O (2 mL/0.7 mL) was bubbled argon for 5 minutes prior to addition of Pd(PPh3)4 (5.0 mg, 0.0048 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, concentrated, and purified by reverse phase HPLC method A (water/CH3CN, 0.1% TFA 10-90%) to give the title compound (9.7 mg, 46%).

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. concentrationconcentrated
  6. custompurified by reverse phase HPLC method A (water/CH3CN, 0.1% TFA 10-90%)

Sources & evidence

ORD record
ord-d368d8ec72dc4fc0b95a7c6d020fb392
Source dataset
uspto-grants-2011_11
Patent number
US08063071B2

Reaction notes

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