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Cesium carbonate → (+/-)-tert-butyl ((3R,4R)-3-((tert-butyldimethylsilyl)oxy)-1-(2-chloro-5-cyano-3-((7-cyano-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)piperidin-4-yl)carbamate

HRID 1430824
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HRID 1430824 반응식
[CH:1]1([N:4]([CH2:20][C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)[C:5]2[C:10]3=[N:11][CH:12]=[C:13]([C:14]#[N:15])[N:9]3[N:8]=[C:7](S(C)(=O)=O)[N:6]=2)[CH2:3][CH2:2]1.[NH2:29][C:30]1[C:31]([Cl:60])=[C:32]([N:38]2[CH2:43][CH2:42][C@@H:41]([NH:44][C:45](=[O:51])[O:46][C:47]([CH3:50])([CH3:49])[CH3:48])[C@H:40]([O:52][Si:53]([C:56]([CH3:59])([CH3:58])[CH3:57])([CH3:55])[CH3:54])[CH2:39]2)[CH:33]=[C:34]([C:36]#[N:37])[CH:35]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.C(OCC)(=O)C>[Si:53]([O:52][C@H:40]1[C@H:41]([NH:44][C:45](=[O:51])[O:46][C:47]([CH3:50])([CH3:49])[CH3:48])[CH2:42][CH2:43][N:38]([C:32]2[CH:33]=[C:34]([C:36]#[N:37])[CH:35]=[C:30]([NH:29][C:7]3[N:6]=[C:5]([N:4]([CH:1]4[CH2:3][CH2:2]4)[CH2:20][C:21]4[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=4)[C:10]4=[N:11][CH:12]=[C:13]([C:14]#[N:15])[N:9]4[N:8]=3)[C:31]=2[Cl:60])[CH2:39]1)([C:56]([CH3:57])([CH3:58])[CH3:59])([CH3:55])[CH3:54]
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6

반응물 3

HCID 10796Cesium carbonateHCID 86708519HCID 86708519, 화합물2회HCID 131732385(+/-)-tert-butyl ((3R,4R)-1-(3-amino-2-chloro-5-cyanophenyl)-3-((tert-butyldimethyl silyl)oxy)piperidin-4-yl)carbamate

생성물 1

HCID 131732386(+/-)-tert-butyl ((3R,4R)-3-((tert-butyldimethylsilyl)oxy)-1-(2-chloro-5-cyano-3-((7-cyano-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)piperidin-4-yl)carbamate
수율 72.8%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

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온도
50 °C

실험 절차

A mixture of 4-(cyclopropyl(4-methoxybenzyl)amino)-2-(methylsulfonyl) imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (Intermediate 2, 185 mg, 0.464 mmol), (+/−)-tert-butyl ((3R,4R)-1-(3-amino-2-chloro-5-cyanophenyl)-3-((tert-butyldimethyl silyl)oxy)piperidin-4-yl)carbamate (223 mg, 0.464 mmol) and cesium carbonate (302 mg, 0.927 mmol) in DMF (5 mL) was heated at 50° C. for 4 h. LCMS showed completion of reaction. The reaction mixture was diluted with ethyl acetate and the solid was filtered off. The filtrate was concentrated in vacuo and the crude product was purified by flash chromatography on silica gel using an automated ISCO system (40 g column, eluting with 10-35% ethyl acetate/hexanes). (+/−)-tert-butyl ((3R,4R)-3-((tert-butyldimethylsilyl)oxy)-1-(2-chloro-5-cyano-3-((7-cyano-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)piperidin-4-yl)carbamate (270 mg) was obtained as a white solid.

후처리

  1. customcompletion of reaction
  2. filtrationthe solid was filtered off
  3. concentrationThe filtrate was concentrated in vacuo
  4. customthe crude product was purified by flash chromatography on silica gel using
  5. washan automated ISCO system (40 g column, eluting with 10-35% ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-0868b3dea8c343808b1d5f6afa75a26b
출처 데이터셋
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08940736B2

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