Dichloromethane → N-(2-diethylamino-ethyl)-4-(2-benzyloxy-acetylamino)-2-methoxy-benzamide

HRID 2262351노트

반응식

HRID 2262351 반응식
[CH2:1]([O:8][CH2:9][C:10]([OH:12])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(Cl)Cl.CN(C)CCCN=C=NCC.[NH2:27][C:28]1[CH:43]=[CH:42][C:31]([C:32]([NH:34][CH2:35][CH2:36][N:37]([CH2:40][CH3:41])[CH2:38][CH3:39])=[O:33])=[C:30]([O:44][CH3:45])[CH:29]=1>O>[CH2:40]([N:37]([CH2:38][CH3:39])[CH2:36][CH2:35][NH:34][C:32](=[O:33])[C:31]1[CH:42]=[CH:43][C:28]([NH:27][C:10](=[O:12])[CH2:9][O:8][CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)=[CH:29][C:30]=1[O:44][CH3:45])[CH3:41]

참가 물질

6

반응물 4

HCID 6344Dichloromethane2회HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 773744-Amino-N-[2-(diethylamino)ethyl]-2-methoxybenzamideHCID 290301(Benzyloxy)acetic acid

생성물 1

HCID 59793337N-(2-diethylamino-ethyl)-4-(2-benzyloxy-acetylamino)-2-methoxy-benzamide수율 27%

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
4 °C

실험 절차

664 mg (4 mmol) of benzyloxyacetic acid is introduced into 20 ml of methylene chloride, mixed with 768 mg (4 mmol) of N′-(3-dimethylaminopropyl)-N-ethylcarbodiimide (EDG), and stirred for 0.5 hour at 4° C. Then, 1.06 g (4 mmol) of 4-amino-N-(2-diethylamino-ethyl)-2-methoxy-benzamide in a total of 12 ml of methylene chloride is added to the batch and stirred for 48 hours at room temperature. After 30 ml of water is added, it is extracted twice with 30 ml each of methylene chloride. The organic phase is dried, filtered and concentrated by evaporation. The residue is chromatographed on 20 g of Isolute NH2 (50 μm) with methylene chloride. The correspondingly combined fractions are concentrated by evaporation and chromatographed again on 20 g of Isolute NH2 (50 μm) with a gradient from cyclohexane to cyclohexane:methylene chloride 50:50 as an eluant, and 348 mg (27% of theory) of N-(2-diethylamino-ethyl)-4-(2-benzyloxy-acetylamino)-2-methoxy-benzamide is obtained as an oil.

후처리

  1. stirringstirred for 48 hours at room temperature
  2. extractionit is extracted twice with 30 ml each of methylene chloride
  3. customThe organic phase is dried
  4. filtrationfiltered
  5. concentrationconcentrated by evaporation
  6. customThe residue is chromatographed on 20 g of Isolute NH2 (50 μm) with methylene chloride
  7. concentrationThe correspondingly combined fractions are concentrated by evaporation
  8. customchromatographed again on 20 g of Isolute NH2 (50 μm) with a gradient from cyclohexane to cyclohexane:methylene chloride 50:50 as an eluant

출처 및 근거

ORD 기록
ord-e690916cd21f4c2f9081f1aa32936cee
출처 데이터셋
uspto-grants-2010_12
특허 번호
US07850948B2

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