Water → HCID 13769773, compound

HRID 979947Notes

Reaction equation

HRID 979947 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=3[N:11]=[C:10]2[NH:18][CH:19]2[CH2:24][CH2:23][N:22]([CH2:25][CH2:26][NH:27][C:28]3[S:29][CH:30]=[CH:31][N:32]=3)[CH2:21][CH2:20]2)=[CH:4][CH:3]=1.C(N(CC)CC)C.[C:40](Cl)(=[O:47])[C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1.O>ClC(Cl)Cl>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=3[N:11]=[C:10]2[NH:18][CH:19]2[CH2:20][CH2:21][N:22]([CH2:25][CH2:26][N:27]([C:28]3[S:29][CH:30]=[CH:31][N:32]=3)[C:40](=[O:47])[C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)[CH2:23][CH2:24]2)=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 13769658HCID 13769658, compound

Product 1

HCID 13769773HCID 13769773, compoundYield 48%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent2×

Procedure

To a stirred mixture of 6.76 parts of 1-[(4-fluorophenyl)methyl]-N-[1-[2-(2-thiazolylamino)ethyl]-4-piperidinyl]-1H-benzimidazol-2-amine, 1.5 parts of N,N-diethylethanamine and 225 parts of trichloromethane was added dropwise a solution of 2.1 parts of benzoyl chloride in trichloromethane. Upon completion, stirring was continued overnight. The reaction mixture was poured into water. The layers were separated. The organic layer was dried, filtered and evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol, saturated with ammonia, (96:4 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from 2,2'-oxybispropane and 2-propanone. The product was filtered off and dried, yielding 4 parts (48%) of N-[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-yl]amino]-1-piperidinyl]ethyl]-N-(2-thiazolyl)benzamide; mp. 155.9° C. (compound 100).

Workup

  1. customThe layers were separated
  2. customThe organic layer was dried
  3. filtrationfiltered
  4. customevaporated
  5. customThe residue was purified by column chromatography over silica gel using
  6. additiona mixture of trichloromethane and methanol
  7. customThe pure fractions were collected
  8. customthe eluent was evaporated
  9. customThe residue was crystallized from 2,2'-oxybispropane and 2-propanone
  10. filtrationThe product was filtered off
  11. customdried

Sources & evidence

ORD record
ord-d35f9023f80f462088cfd00bb2fa2f96
Source dataset
uspto-grants-1987_01
Patent number
US04634704

Reaction notes

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