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Cesium carbonate → tert-butyl 2-(6-((3-ethyl-4-(imidazo[1,2-a]pyridine-3-carboxamido)-1H-indazol-1-yl)methyl)pyridin-2-yloxy)ethylcarbamate

HRID 79281
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HRID 79281 반응식
[CH2:1]([C:3]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][C:10]=2[NH:12][C:13]([C:15]2[N:19]3[CH:20]=[CH:21][CH:22]=[CH:23][C:18]3=[N:17][CH:16]=2)=[O:14])[N:5]([CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([OH:31])[N:26]=2)[N:4]=1)[CH3:2].CS(O[CH2:37][CH2:38][NH:39][C:40]([O:42][C:43]([CH3:46])([CH3:45])[CH3:44])=[O:41])(=O)=O.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C(=O)C.C(OCC)(=O)C.CO>[CH2:1]([C:3]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][C:10]=2[NH:12][C:13]([C:15]2[N:19]3[CH:20]=[CH:21][CH:22]=[CH:23][C:18]3=[N:17][CH:16]=2)=[O:14])[N:5]([CH2:24][C:25]2[N:26]=[C:27]([O:31][CH2:37][CH2:38][NH:39][C:40](=[O:41])[O:42][C:43]([CH3:46])([CH3:45])[CH3:44])[CH:28]=[CH:29][CH:30]=2)[N:4]=1)[CH3:2]
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참가 물질

7

반응물 3

HCID 10796Cesium carbonateHCID 22605302tert-Butyl N-(2-((methylsulfonyl)oxy)ethyl)carbamateHCID 178437935HCID 178437935, 화합물

생성물 1

HCID 67261301tert-butyl 2-(6-((3-ethyl-4-(imidazo[1,2-a]pyridine-3-carboxamido)-1H-indazol-1-yl)methyl)pyridin-2-yloxy)ethylcarbamate수율 33%

시약·촉매·용매 3

HCID 887Methanol
용매
HCID 8857Ethyl Acetate용매
HCID 31374Dimethylacetamide용매

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온도
82.5 °C

실험 절차

To a solution of N-(3-ethyl-1-((6-hydroxypyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (Example 17, Step A; 50 mg, 0.121 mmol) and 2-(tert-butoxycarbonylamino)ethyl methanesulfonate (71 mg, 0.297 mmol) in N,N-dimethylacetamide (2 mL) was added cesium carbonate (79.0 mg, 0.242 mmol). The mixture was heated to 80-85° C. for 90 minutes. After allowing to cool the mixture was diluted with ethyl acetate and methanol, filtered and concentrated under a stream of nitrogen. The material was purified using preparative thin layer chromatography on silica, eluting with 5% methanol and 1% triethylamine in ethyl acetate to give the product 21.9 mg (33%).

후처리

  1. temperatureto cool the mixture
  2. filtrationfiltered
  3. concentrationconcentrated under a stream of nitrogen
  4. customThe material was purified
  5. washeluting with 5% methanol and 1% triethylamine in ethyl acetate

출처 및 근거

ORD 기록
ord-ea546d2f4be440ffbad0d1ad6b2bbdb0
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08841455B2

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