Dicyclohexylcarbodiimide → 6-(1-Imidazolylmethyl)benzoxazol-2-yl-methyl methyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate

HRID 1975604

반응식

HRID 1975604 반응식
[CH3:1][C:2]1[NH:3][C:4]([CH3:24])=[C:5]([C:20]([O:22][CH3:23])=[O:21])[CH:6]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([N+:17]([O-:19])=[O:18])[CH:12]=2)[C:7]=1[C:8]([OH:10])=[O:9].O[CH2:26][C:27]1[O:28][C:29]2[CH:35]=[C:34]([CH2:36][C:37]3[NH:38][CH:39]=[CH:40][N:41]=3)[CH:33]=[CH:32][C:30]=2[N:31]=1.C1(N=C=NC2CCCCC2)CCCCC1>C1(C)C=CC=CC=1>[CH3:1][C:2]1[NH:3][C:4]([CH3:24])=[C:5]([C:20]([O:22][CH3:23])=[O:21])[CH:6]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([N+:17]([O-:19])=[O:18])[CH:12]=2)[C:7]=1[C:8]([O:10][CH2:26][C:27]1[O:28][C:29]2[CH:35]=[C:34]([CH2:36][C:37]3[NH:41][CH:40]=[CH:39][N:38]=3)[CH:33]=[CH:32][C:30]=2[N:31]=1)=[O:9]

참가 물질

5

반응물 3

HCID 10868DicyclohexylcarbodiimideHCID 1733222,6-Dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid monomethyl esterHCID 700470352-Hydroxymethyl-6-(1-imidazolylmethyl)benzoxazole

생성물 1

HCID 700480446-(1-Imidazolylmethyl)benzoxazol-2-yl-methyl methyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate

시약·촉매·용매 1

HCID 1140Toluene용매

실험 절차

332 mg (1 mM) of 1,4-dihydro-2,6-dimethyl-5-methoxycarbonyl-4-(3-nitrophenyl)pyridine-3-carboxylic acid together with 229 mg (1 mM) of 2-hydroxymethyl-6-(1-imidazolylmethyl)benzoxazole 248 mg (1.2 mM) of dicyclohexylcarbodiimide and 134 mg (1.1 mM) of 4-N,N-dimethylaminopyridine were dissolved in 5 ml of toluene, while heating, and refluxed for six hours. The solution was cooled to room temperature, and the crystals produced were filtered off. The filtrate was washed with water and dried over anhydrous sodium sulfate. After the solvent was distilled off, the residue was purified by chromatography on a silica gel column, whereby the captioned compound was obtained. The yield was 542 mg (99.9%).

후처리

  1. temperaturewhile heating
  2. temperaturerefluxed for six hours
  3. customthe crystals produced
  4. filtrationwere filtered off
  5. washThe filtrate was washed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. distillationAfter the solvent was distilled off
  8. customthe residue was purified by chromatography on a silica gel column, whereby the captioned compound
  9. customwas obtained

출처 및 근거

ORD 기록
ord-226a9f9367aa4ac39fbe3ddc55086a66
출처 데이터셋
uspto-grants-1994_02
특허 번호
US05286869

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