Water → HCID 59625513, compound

HRID 2192836Notes

Reaction equation

[NH2:1][C:2]1[CH:10]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=O.[CH3:15][CH:16]([CH3:32])[CH2:17][NH:18][CH:19]1[CH2:24][CH2:23][CH2:22][N:21]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:20]1.P(C#N)(=O)(OCC)OCC.O>ClCCCl>[NH2:1][C:2]1[CH:10]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:8]=[CH:7][C:3]=1[C:4]([N:18]([CH2:17][CH:16]([CH3:32])[CH3:15])[CH:19]1[CH2:24][CH2:23][CH2:22][N:21]([C:25]([O:27][C:28]([CH3:29])([CH3:30])[CH3:31])=[O:26])[CH2:20]1)=[O:6]

Participants

Conditions

Temperature: 70 °C

Procedure

2-amino-4-(trifluoromethyl)benzoic acid (0.32 g) and tert-butyl 3-[(2-methylpropyl)amino]piperidine-1-carboxylate (0.4 g) were dissolved in 1,2-dichloroethane (20 ml), diethyl phosphorocyanidate (0.31 g) was added and the mixture was stirred at 70° C. overnight. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was subjected to silica gel column chromatography, and the fraction eluted with ethyl acetate-hexane (0:10-1:1) was concentrated under reduced pressure to give the object compound (0.33 g).

Workup

extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
customThe solvent was evaporated under reduced pressure
washthe fraction eluted with ethyl acetate-hexane (0:10-1:1)
concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record: ord-4a10b225424c4f489865be97580ed51b
Source dataset: uspto-grants-2012_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08329691B2

Reaction notes

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