4-Bromo-2-(((2-(5,5-dimethyl-1-cyclopenten-1-yl)-2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-4-yl)methyl)oxy)pyridine → Ethyl 3-(2-(((2-(5,5-dimethyl-1-cyclopenten-1-yl)-2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-4-yl)methyl)oxy)-4-pyridinyl)propanoate

HRID 1662575

Reaction equation

HRID 1662575 reaction equation
Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([C:16]3[CH:21]=[C:20]([O:22][CH3:23])[CH:19]=[CH:18][C:17]=3[F:24])=[C:12]([C:25]3[C:29]([CH3:31])([CH3:30])[CH2:28][CH2:27][CH:26]=3)[CH:11]=2)[CH:3]=1.[Br-].[CH2:33]([O:35][C:36](=[O:40])[CH2:37][CH2:38][Zn+])[CH3:34]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].CC(P(C(C)(C)C)[C]1[CH][CH][CH][CH]1)(C)C.C1C=CC([C]2[C](C3C=CC=CC=3)[C](C3C=CC=CC=3)[C](C3C=CC=CC=3)[C]2C2C=CC=CC=2)=CC=1.[Fe].C1COCC1>[CH3:30][C:29]1([CH3:31])[C:25]([C:12]2[CH:11]=[C:10]([CH2:9][O:8][C:4]3[CH:3]=[C:2]([CH2:38][CH2:37][C:36]([O:35][CH2:33][CH3:34])=[O:40])[CH:7]=[CH:6][N:5]=3)[CH:15]=[CH:14][C:13]=2[C:16]2[CH:21]=[C:20]([O:22][CH3:23])[CH:19]=[CH:18][C:17]=2[F:24])=[CH:26][CH2:27][CH2:28]1

Participants

6

Reactant 2

HCID 577058284-Bromo-2-(((2-(5,5-dimethyl-1-cyclopenten-1-yl)-2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-4-yl)methyl)oxy)pyridineHCID 178471816HCID 178471816, compound

Product 1

HCID 57706923Ethyl 3-(2-(((2-(5,5-dimethyl-1-cyclopenten-1-yl)-2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-4-yl)methyl)oxy)-4-pyridinyl)propanoateYield 78%

Reagents, catalysts & solvents 3

HCID 6505921(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladiumCatalystHCID 178454872HCID 178454872, compoundCatalystHCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
80 °C

Procedure

To a sealed tube containing 95.A (0.1059 g, 0.22 mmol), bis(dibenzylideneacetone)palladium (0.0068 g, 0.012 mmol), and CTC-Q-Phos (commercially available from Strem Chemicals) (0.0079 g, 0.011 mmol) was added dry THF (2.1 mL). After 5 minutes, 3-ethoxy-3-oxopropylzinc bromide, 0.5 M solution in THF (0.9 mL, 0.45 mmol) was added dropwise. After 1 hour, the mixture was heated to 80° C. and monitored with TLC and LC-MS. After 16.5 hours, the reaction was cooled to room temperature, and then the organic solvent was removed under reduced pressure. The solid was filtered off, and the solvent was concentrated. The residue was purified by silica gel flash chromatography (0-40% EtOAc/hexane) to afford 95.B (86.2 mg, 78% yield). 1H NMR (500 MHz) (CDCl3) δ ppm 8.10 (1H, d, J=5.4 Hz), 7.41 (1H, dd, J=7.9, 1.8 Hz), 7.33 (2H, dd, J=4.6, 1.5 Hz), 6.98 (1H, m), 6.81 (3H, m), 6.70 (1H, s), 5.52 (1H, t, J=2.0 Hz), 5.42 (2H, s), 4.15 (2H, q, J=7.1 Hz), 3.76 (3H, s), 2.93 (2H, t, J=7.7 Hz), 2.66 (2H, m), 2.25 (2H, td, J=7.0, 2.4 Hz), 1.66 (2H, t, J=7.0 Hz), 1.25 (3H, t, J=7.1 Hz), 0.86 (6H, s).

Workup

  1. waitAfter 1 hour
  2. waitAfter 16.5 hours
  3. temperaturethe reaction was cooled to room temperature
  4. customthe organic solvent was removed under reduced pressure
  5. filtrationThe solid was filtered off
  6. concentrationthe solvent was concentrated
  7. customThe residue was purified by silica gel flash chromatography (0-40% EtOAc/hexane)

Sources & evidence

ORD record
ord-c13e7fedcd5e494f9192825e06edb868
Source dataset
uspto-grants-2011_10
Patent number
US08030354B2

Linked notes

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