Diisopropylethylamine → Ethyl {4-[(butyl{6-[4-(trifluoromethyl)phenyl]pyrazin-2-yl}amino)methyl]-2-ethylphenoxy}acetate

HRID 1269667Notes

Reaction equation

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

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2-chloro-6-[4-(trifluoromethyl)phenyl]pyrazine (0.172 g, 0.56 mmol), ethyl {4-[(butylamino)methyl]-2-ethylphenoxy}acetate (0.25 g, 0.85 mmol) and N,N-diisopropylethylamine (0.099 mL, 0.56 mmol) were heated together in a reactivial at 100° C. for 18 h. The vial was then allowed to cool to room temperature and the residue dissolved in CH2Cl2 (50 mL) and the organic solution washed with water (15 mL) and brine (10 mL). The solution was then passed through a hydrophobic frit and evaporated. Purification by Biotage™ chromatography (Silica, 40 g) eluting 9:1cyclohexane:EtOAc, afforded the title compound as a pale yellow oil (50 mg).

Workup

temperatureto cool to room temperature
washthe organic solution washed with water (15 mL) and brine (10 mL)
customevaporated
customPurification by Biotage™ chromatography (Silica, 40 g)
washeluting 9

Sources & evidence

ORD record: ord-b3071d0b01f141d580950d1afc3b5980
Source dataset: uspto-grants-2007_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07199239B2

Reaction notes

Loading…