Chloroform → N-[1-({2-Chloro-6-[(cyclobutylmethyl)oxy]phenyl}methyl)-1H-pyrazol-3-yl]-2,6-difluorobenzamide

HRID 1946392Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([OH:8])[C:3]=1[CH2:9][N:10]1[CH:14]=[CH:13][C:12]([NH:15][C:16](=[O:25])[C:17]2[C:22]([F:23])=[CH:21][CH:20]=[CH:19][C:18]=2[F:24])=[N:11]1.CC(C)([O-])C.[K+].Br[CH2:33][CH:34]1[CH2:37][CH2:36][CH2:35]1.C(Cl)(Cl)Cl>CS(C)=O>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([O:8][CH2:33][CH:34]2[CH2:37][CH2:36][CH2:35]2)[C:3]=1[CH2:9][N:10]1[CH:14]=[CH:13][C:12]([NH:15][C:16](=[O:25])[C:17]2[C:22]([F:23])=[CH:21][CH:20]=[CH:19][C:18]=2[F:24])=[N:11]1

Participants

Conditions

Temperature: 60 °C

Procedure

To a stirred solution of N-{1-[(2-chloro-6-hydroxyphenyl)methyl]-1H-pyrazol-3-yl}-2,6-difluorobenzamide (for a preparation see Intermediate 11)(0.047 g, 0.13 mmol) in dry DMSO (0.6 ml) in a reactivial was added potassium t-butoxide (0.0145 g, 0.13 mmol). The mixture was stirred for 20 min and then (bromomethyl)cyclobutane (0.023 g, 0.15 mmol, Aldrich) added. The mixture was stirred and heated at 60° C. for 24 h. The cooled reaction mixture was added to chloroform (about 20 ml) and this solution filtered through a hydrophobic frit and evaporated in vacuo. The residue was purified on MDAP (Method B) to give the title compound as a white solid (0.038 g); LCMS: (System 4) MH+=432, tRET=3.36 min.

Workup

stirringThe mixture was stirred
customThe cooled reaction mixture
filtrationthis solution filtered through a hydrophobic frit
customevaporated in vacuo
customThe residue was purified on MDAP (Method B)

Sources & evidence

ORD record: ord-814079162af54f86b496147b1fccabe3
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08399436B2

Reaction notes

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