Water → HCID 13983153, compound

HRID 893696Notes

Reaction equation

HRID 893696 reaction equation
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[NH:16][CH:17]1[CH2:22][CH2:21][N:20]([CH2:23][CH2:24][NH:25][C:26](=[O:35])[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[NH:33][CH3:34])[CH2:19][CH2:18]1.C(N(CC)CC)C.[C:43](Cl)(Cl)=[S:44].O>ClCCl>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[NH:16][CH:17]1[CH2:22][CH2:21][N:20]([CH2:23][CH2:24][N:25]2[C:26](=[O:35])[C:27]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[N:33]([CH3:34])[C:43]2=[S:44])[CH2:19][CH2:18]1

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 10040ThiophosgeneHCID 13983259HCID 13983259, compound

Product 1

HCID 13983153HCID 13983153, compoundYield 27.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred mixture of 4.7 parts of N-[2-[4-[[1-(2-furanylmethyl)-1H-benzimidazol-2-yl]amino]-1-piperidinyl]ethyl]-2-(methylamino)benzamide, 2.02 parts of N,N-diethylethanamine and 195 parts of dichloromethane was added dropwise a solution of 1.14 parts of carbonothioic dichloride in dichloromethane. Upon completion, stirring was continued overnight at room temperature. 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 acetonitrile, yielding 1.4 parts (27.5%) of 3-[2-[4-[[1-(2-furanylmethyl)-1H-benzimidazol-2-yl]amino]-1-piperidinyl]ethyl]-2,3-dihydro-1-methyl-2-thioxo-4(1H)-quinazolinone; mp. 188.4° C. (compound 129).

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 acetonitrile

Sources & evidence

ORD record
ord-52364b62e5974290941f3d8ffc69f5a9
Source dataset
uspto-grants-1992_06
Patent number
US05126339

Reaction notes

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