Tributylphosphine → Ethyl 3-(2-(((2-(2-cyano-2-methylpropyl)-2'-fluoro-5'-methoxybiphenyl-4-yl)oxy)methyl)pyridin-4-yl)-3-cyclopropylpropanoate

HRID 1049489Notes

Reaction equation

HRID 1049489 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][C:11]=1[CH2:17][C:18]([CH3:22])([CH3:21])[C:19]#[N:20].[CH:23]1([CH:26]([C:33]2[CH:38]=[CH:37][N:36]=[C:35]([CH2:39]O)[CH:34]=2)[CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH2:25][CH2:24]1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1(C)C=CC=CC=1.CCCCCC>[C:19]([C:18]([CH3:22])([CH3:21])[CH2:17][C:11]1[CH:12]=[C:13]([O:16][CH2:39][C:35]2[CH:34]=[C:33]([CH:26]([CH:23]3[CH2:24][CH2:25]3)[CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH:38]=[CH:37][N:36]=2)[CH:14]=[CH:15][C:10]=1[C:3]1[CH:4]=[C:5]([O:8][CH3:9])[CH:6]=[CH:7][C:2]=1[F:1])#[N:20]

Participants

7

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 117759601Ethyl 3-cyclopropyl-3-(2-(hydroxymethyl)pyridin-4-yl)propanoateHCID 1177601363-(2'-Fluoro-4-hydroxy-5'-methoxybiphenyl-2-yl)-2,2-dimethylpropanenitrile

Product 1

HCID 117759958Ethyl 3-(2-(((2-(2-cyano-2-methylpropyl)-2'-fluoro-5'-methoxybiphenyl-4-yl)oxy)methyl)pyridin-4-yl)-3-cyclopropylpropanoateYield 87.4%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8058HexaneSolvent

Procedure

To a solution of 3-(2′-fluoro-4-hydroxy-5′-methoxybiphenyl-2-yl)-2,2-dimethylpropanenitrile (151 mg), ethyl 3-cyclopropyl-3-(2-(hydroxymethyl)pyridin-4-yl)propanoate (168 mg) and tributylphosphine (0.25 mL) in toluene (5.0 mL) was added 1,1′-(azodicarbonyl)dipiperidine (256 mg), and the mixture was stirred at room temperature for 3 hr. Hexane was added to the reaction mixture, and the mixture was filtered through celite. The filtrate was concentrated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (234 mg) as a colorless oil.

Workup

  1. filtrationthe mixture was filtered through celite
  2. concentrationThe filtrate was concentrated under reduced pressure
  3. customthe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-172ebd4c76044e6793c85ec24d6d4f83
Source dataset
uspto-grants-2016_07
Patent number
US09382188B2

Reaction notes

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