Sodium Bicarbonate → [1,1'-Biphenyl]-4-acetic acid, 4'-[4-[[[(1R)-1-(2-chlorophenyl)ethoxy]carbonyl]amino]-3-methyl-5-isoxazolyl]-, ethyl ester

HRID 553701Notes

Reaction equation

HRID 553701 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C@H:8]([O:10][C:11](=[O:26])[NH:12][C:13]1[C:14]([CH3:25])=[N:15][O:16][C:17]=1[C:18]1[CH:23]=[CH:22][C:21](Br)=[CH:20][CH:19]=1)[CH3:9].[CH2:27]([O:29][C:30](=[O:47])[CH2:31][C:32]1[CH:37]=[CH:36][C:35](B2OC(C)(C)C(C)(C)O2)=[CH:34][CH:33]=1)[CH3:28].C(=O)(O)[O-].[Na+]>COCCOC.O>[CH2:27]([O:29][C:30](=[O:47])[CH2:31][C:32]1[CH:37]=[CH:36][C:35]([C:21]2[CH:22]=[CH:23][C:18]([C:17]3[O:16][N:15]=[C:14]([CH3:25])[C:13]=3[NH:12][C:11]([O:10][C@@H:8]([C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=3[Cl:1])[CH3:9])=[O:26])=[CH:19][CH:20]=2)=[CH:34][CH:33]=1)[CH3:28]

Participants

6

Reactant 3

HCID 516892Sodium BicarbonateHCID 46737998Ethyl (4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetateHCID 66660466(R)-1-(2-chlorophenyl)ethyl (5-(4-bromophenyl)-3-methylisoxazol-4-yl)carbamate

Product 1

HCID 67351643[1,1'-Biphenyl]-4-acetic acid, 4'-[4-[[[(1R)-1-(2-chlorophenyl)ethoxy]carbonyl]amino]-3-methyl-5-isoxazolyl]-, ethyl ester

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

[5-(4-Bromo-phenyl)-3-methyl-isoxazol-4-yl]-carbamic acid (R)-1-(2-chloro-phenyl)-ethyl ester (3.0 g, 6.9 mmol), [4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-acetic acid ethyl ester (2.2 g, 7.6 mmol), dichloro-bis(triphenylphosphine)palladium(II) (0.25 g, 0.35 mmol), and sodium bicarbonate (1.7 g, 20.7 mmol) were combined in DME (30 mL) and H2O (10 mL), and the reaction was stirred at 80° C. for 2 hours. After aqueous work-up, the crude material was purified by silica gel chromatography (0-40% EtOAc in hexanes) to give the title compound.

Workup

  1. customAfter aqueous work-up, the crude material was purified by silica gel chromatography (0-40% EtOAc in hexanes)

Sources & evidence

ORD record
ord-7849c5f514f542c890c53e5b6b83aa1a
Source dataset
uspto-grants-2011_11
Patent number
US08048902B2

Reaction notes

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