Dichloromethane → Ethyl 4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-YL]amino]piperidine-1-carboxylate

HRID 582059

반응식

HRID 582059 반응식
[F:1][C:2]1[CH:18]=[CH:17][C:5]([CH2:6][N:7]2[C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=3[N:9]=[C:8]2Cl)=[CH:4][CH:3]=1.[NH2:19][CH:20]1[CH2:25][CH2:24][N:23]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[CH2:22][CH2:21]1.ClCCl>C(OCC)(=O)C.ClCCl>[F:1][C:2]1[CH:18]=[CH:17][C:5]([CH2:6][N:7]2[C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=3[N:9]=[C:8]2[NH:19][CH:20]2[CH2:21][CH2:22][N:23]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[CH2:24][CH2:25]2)=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 6344DichloromethaneHCID 100867Ethyl 4-amino-1-piperidinecarboxylateHCID 30202411-(4-Fluorobenzyl)-2-chlorobenzimidazole

생성물 1

HCID 3019916Ethyl 4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-YL]amino]piperidine-1-carboxylate

시약·촉매·용매 1

HCID 21226138Dichloromethane ethylacetate용매

실험 절차

Combine 1-(4-fluorobenzyl)-2-chloro-1H-benzimidazole (22.1 g, 84 mmol) and ethyl 4-aminopiperidine-1-carboxylate (27.7 g, 161 mmol) and heat to 170° C. After 4 hours, partition the reaction mixture between aqueous 2.5M sodium hydroxide solution and chloroform. Separate the layers and extract the aqueous layer twice with chloroform. Combine the organic layers, dry over Na2SO4, filter, and evaporate in vacuo to give a residue. Chromatograph the residue on a short column of silica gel eluting sequentially with dichloromethane and then 15% ethyl acetate/dichloromethane. Evaporate the product containing fractions, triturate with hexane, filter, and dry to give (1-(4-fluorobenzyl)-1H-benzimidazol-2-yl)(1-ethoxycarbonylpiperidin-4-yl)amine as a solid.

후처리

  1. custompartition the reaction mixture between aqueous 2.5M sodium hydroxide solution and chloroform
  2. customSeparate the layers
  3. extractionextract the aqueous layer twice with chloroform
  4. dry with materialdry over Na2SO4
  5. filtrationfilter
  6. customevaporate in vacuo
  7. customto give a residue
  8. customEvaporate the product
  9. additioncontaining fractions
  10. customtriturate with hexane
  11. filtrationfilter
  12. customdry

출처 및 근거

ORD 기록
ord-b842b470e15c4a6696546cae5547762b
출처 데이터셋
uspto-grants-1999_07
특허 번호
US05922737

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