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Toluene → tert-butyl 2-(2,6,7-trimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl)ethylcarbamate

HRID 11368
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HRID 11368 반응식
[NH2:1][C:2]1[C:3]([O:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[N:4][C:5]([CH3:20])=[C:6]([CH3:19])[C:7]=1[NH:8][CH2:9][CH2:10][NH:11][C:12](=[O:18])[O:13][C:14]([CH3:17])([CH3:16])[CH3:15].[C:28](OCC)(OCC)(OCC)[CH3:29].Cl.N1C=CC=CC=1.C1(C)C=CC=CC=1>C(OCC)(=O)C>[CH3:28][C:29]1[N:8]([CH2:9][CH2:10][NH:11][C:12](=[O:18])[O:13][C:14]([CH3:17])([CH3:16])[CH3:15])[C:7]2[C:6]([CH3:19])=[C:5]([CH3:20])[N:4]=[C:3]([O:21][C:22]3[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=3)[C:2]=2[N:1]=1
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참가 물질

6

반응물 4

HCID 1140TolueneHCID 66221Triethyl orthoacetateHCID 10176127Pyridinium chlorideHCID 21973843Tert-butyl 2-[(3-amino-5,6-dimethyl-2-phenoxypyridin-4-yl)amino]ethylcarbamate

생성물 1

HCID 21973834tert-butyl 2-(2,6,7-trimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl)ethylcarbamate수율 100%

시약·촉매·용매 1

HCID 8857
Ethyl Acetate
용매

실험 절차

A mixture of tert-butyl 2-[(3-amino-5,6-dimethyl-2-phenoxypyridin-4-yl)amino]ethylcarbamate (43.7 g, 117 mmol), triethyl orthoacetate (22.6 mL, 123 mmol), pyridine hydrochloride (4.4 g) and toluene (440 mL) was heated at reflux for 30 minutes. The reaction mixture was concentrated under reduced pressure to provide a brown oil. The oil was dissolved in ethyl acetate (1 L) and washed with water (2×500 mL). The aqueous washes were combined and extracted with ethyl acetate (2×500 mL). The combined organics were washed with brine, dried over magnesium sulfate and then concentrated under reduced pressure to provide 46.4 g of tert-butyl 2-(2,6,7-trimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl)ethylcarbamate as a white solid, m.p. 180–182° C.

후처리

  1. temperaturewas heated
  2. temperatureat reflux for 30 minutes
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. customto provide a brown oil
  5. washwashed with water (2×500 mL)
  6. extractionextracted with ethyl acetate (2×500 mL)
  7. washThe combined organics were washed with brine
  8. dry with materialdried over magnesium sulfate
  9. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-b26a23f2ad984f5d9be603e103503082
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07098221B2

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