Sodium Methoxide → HCID 13588101, compound
Reaction equation
Cl[C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH:8][CH2:9][CH2:10][N:11]2[CH2:16][CH2:15][CH:14]([NH:17][C:18]3[N:22]([CH2:23][C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)[C:21]4[CH:31]=[CH:32][CH:33]=[CH:34][C:20]=4[N:19]=3)[CH2:13][CH2:12]2)[CH:3]=1.[CH3:35][O-:36].[Na+]>CO>[F:30][C:27]1[CH:28]=[CH:29][C:24]([CH2:23][N:22]2[C:21]3[CH:31]=[CH:32][CH:33]=[CH:34][C:20]=3[N:19]=[C:18]2[NH:17][CH:14]2[CH2:15][CH2:16][N:11]([CH2:10][CH2:9][NH:8][C:4]3[CH:3]=[C:2]([O:36][CH3:35])[N:7]=[CH:6][N:5]=3)[CH2:12][CH2:13]2)=[CH:25][CH:26]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 6 parts of N-[1-[2-[(6-chloro-4-pyrimidinyl)amino]ethyl]-4-piperidinyl]-1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-amine, 2.5 parts of a sodium methoxide solution 30% and 40 parts of methanol was stirred and refluxed overnight. The reaction mixture was evaporated and water was added to the residue. The product was extracted with 4-methyl-2-pentanone. The extract was dried, filtered and evaporated. The residue was purified by column-chromatography over silica gel using a mixture of trichloromethane and methanol (90:10 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from acetonitrile, yielding 1.4 parts of 1-[(4-fluorophenyl)methyl]-N-[1-[2-[(6-methoxy-4-pyrimidinyl)amino]-ethyl]-4-piperidinyl]-1H-benzimidazol-2-amine; mp. 145.8° C. (compound 98).
Workup
- temperaturerefluxed overnight
- customThe reaction mixture was evaporated
- additionwater was added to the residue
- extractionThe product was extracted with 4-methyl-2-pentanone
- customThe extract was dried
- filtrationfiltered
- customevaporated
- customThe residue was purified by column-chromatography over silica gel using
- additiona mixture of trichloromethane and methanol (90:10 by volume) as eluent
- customThe pure fractions were collected
- customthe eluent was evaporated
- customThe residue was crystallized from acetonitrile
Sources & evidence
- ORD record
- ord-c8c4359c24be409f8c42240637828c8a
- Source dataset
- uspto-grants-1988_07
- Patent number
- US04760074
Reaction notes
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