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Benzocaine → 4-(6-Bromo-imidazo[1,2-a]pyrazin-8-ylamino)-benzoic acid ethyl ester

HRID 751597
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인쇄 미리보기

반응식

HRID 751597 반응식
[Br:1][C:2]1[N:3]=[C:4](Br)[C:5]2[N:6]([CH:8]=[CH:9][N:10]=2)[CH:7]=1.[CH2:12]([O:14][C:15](=[O:23])[C:16]1[CH:21]=[CH:20][C:19]([NH2:22])=[CH:18][CH:17]=1)[CH3:13].CN(C)C(=O)C.C(=O)(O)[O-].[Na+]>C(OCC)(=O)C>[CH2:12]([O:14][C:15](=[O:23])[C:16]1[CH:21]=[CH:20][C:19]([NH:22][C:4]2[C:5]3[N:6]([CH:8]=[CH:9][N:10]=3)[CH:7]=[C:2]([Br:1])[N:3]=2)=[CH:18][CH:17]=1)[CH3:13]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 2337BenzocaineHCID 31374DimethylacetamideHCID 516892Sodium BicarbonateHCID 150258436,8-Dibromoimidazo[1,2-a]pyrazine

생성물 1

HCID 597547334-(6-Bromo-imidazo[1,2-a]pyrazin-8-ylamino)-benzoic acid ethyl ester

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매
2회

반응 조건

온도
160 °C

실험 절차

A mixture of 6,8-dibromoimidazo[1,2-a]pyrazine (0.18 mol), 4-aminobenzoic acid ethyl ester (2) (0.18 mol), and N,N-dimethylacetamide (30 mL) is heated at 160° C. for 30 min. The mixture is cooled to room temperature, treated with ethyl acetate (150 mL), stirred, and filtered to afford an orange/brown solid. This solid is slurried with ethyl acetate and saturated sodium bicarbonate solution to give 4-(6-bromoimidazo[1,2-a]pyrazin-8-ylamino)benzoic acid ethyl ester (18) freebase.

후처리

  1. temperatureThe mixture is cooled to room temperature
  2. filtrationfiltered
  3. customto afford an orange/brown solid

출처 및 근거

ORD 기록
ord-c7a92c2138eb49c5b05ea4f8c1050527
출처 데이터셋
uspto-grants-2008_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07405295B2

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