Tributylphosphine → Ethyl 3-cyclopropyl-3-(3-(((5-(2-fluoro-5-methoxyphenyl)-6-neopentylpyridin-2-yl)oxy)methyl)phenyl)propanoate

HRID 1049411Notes

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:11]=[CH:12][C:13]([OH:21])=[N:14][C:15]=1[CH2:16][C:17]([CH3:20])([CH3:19])[CH3:18].[CH:22]1([CH:25]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38]O)[CH:33]=2)[CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:24][CH2:23]1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.C(P(CCCC)CCCC)CCC>C1COCC1>[CH:22]1([CH:25]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38][O:21][C:13]3[CH:12]=[CH:11][C:10]([C:3]4[CH:4]=[C:5]([O:8][CH3:9])[CH:6]=[CH:7][C:2]=4[F:1])=[C:15]([CH2:16][C:17]([CH3:18])([CH3:20])[CH3:19])[N:14]=3)[CH:33]=2)[CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:24][CH2:23]1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 5-(2-fluoro-5-methoxyphenyl)-6-neopentylpyridin-2-ol (300 mg) in THF (20 mL) were added a solution of ethyl 3-cyclopropyl-3-(3-(hydroxymethyl)phenyl)propanoate (283 mg) in THF (5.0 mL), 1,1′-(azodicarbonyl)dipiperidine (523 mg) and tri-n-butylphosphine (420 mg) at 0° C., and the mixture was stirred at 0° C. for 5 min. The mixture was further stirred at room temperature for 16 hr, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (384 mg) as a colorless oil.

Workup

stirringThe mixture was further stirred at room temperature for 16 hr
concentrationconcentrated under reduced pressure
customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Sources & evidence

ORD record: ord-b6839f65e3d746e484f3fe5449341022
Source dataset: uspto-grants-2016_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09382188B2

Reaction notes

Loading…