Potassium Carbonate → 3',5'-dichloro-4'-[(R)-2-oxo-1-(tetrahydro-pyran-4-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid methyl ester

HRID 415992Notes

Reaction equation

HRID 415992 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4](OS(C(F)(F)F)(=O)=O)[CH:5]=[C:6]([Cl:21])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([CH:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)[C:10]1=[O:20].[CH3:30][O:31][C:32]([C:34]1[CH:39]=[CH:38][C:37](B(O)O)=[CH:36][CH:35]=1)=[O:33].C(=O)([O-])[O-].[K+].[K+]>C(COC)OC.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>[CH3:30][O:31][C:32]([C:34]1[CH:39]=[CH:38][C:37]([C:4]2[CH:3]=[C:2]([Cl:1])[C:7]([CH2:8][C@@H:9]3[CH2:13][CH2:12][N:11]([CH:14]4[CH2:19][CH2:18][O:17][CH2:16][CH2:15]4)[C:10]3=[O:20])=[C:6]([Cl:21])[CH:5]=2)=[CH:36][CH:35]=1)=[O:33]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 27343694-Methoxycarbonylphenylboronic acidHCID 86631233Trifluoro-methanesulfonic acid 3,5-dichloro-4-[(R)-2-oxo-1-(tetrahydro-pyran-4-yl)-pyrrolidin-3-ylmethyl]-phenyl ester

Product 1

HCID 666221203',5'-dichloro-4'-[(R)-2-oxo-1-(tetrahydro-pyran-4-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid methyl esterYield 88%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
80 °C

Procedure

Treat a solution of trifluoro-methanesulfonic acid 3,5-dichloro-4-[(R)-2-oxo-1-(tetrahydro-pyran-4-yl)-pyrrolidin-3-ylmethyl]-phenyl ester (3.0 g, 6.3 mmol), 4-methoxycarbonylphenylboronic acid (2.3 g, 13 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.73 g, 0.63 mmol) in dimethoxyethane (40 mL) with 2M aqueous potassium carbonate (9.5 mL). Heat the mixture to 80° C. overnight. Cool to room temperature, quench with 1N hydrochloric acid and extract with ethyl acetate. Wash the organic layer with brine, dry over magnesium sulfate, and filter. Purify the crude material by silica gel chromatography using hexanes:ethyl acetate to afford 2.56 g (88%) of desired product: MS (m/z): 462 (M+).

Workup

  1. temperatureCool to room temperature
  2. customquench with 1N hydrochloric acid
  3. extractionextract with ethyl acetate
  4. washWash the organic layer with brine
  5. dry with materialdry over magnesium sulfate
  6. filtrationfilter
  7. customPurify the crude material by silica gel chromatography

Sources & evidence

ORD record
ord-6a8b0aaf92924fdba7232a7cb7ca166e
Source dataset
uspto-grants-2012_01
Patent number
US08088776B2

Reaction notes

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