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Sodium t-butoxide → 4-[5-(2-Ethoxypyridin-4-yl)imidazo[1,2-a]pyrazin-8-ylamino]-N-pyridin-3-ylmethyl benzamide

HRID 1921752
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HRID 1921752 반응식
[CH2:1]([O:3][C:4]1[CH:9]=[C:8](B2OC(C)(C)C(C)(C)O2)[CH:7]=[CH:6][N:5]=1)[CH3:2].Br[C:20]1[N:25]2[CH:26]=[CH:27][N:28]=[C:24]2[C:23]([NH:29][C:30]2[CH:45]=[CH:44][C:33]([C:34]([NH:36][CH2:37][C:38]3[CH:39]=[N:40][CH:41]=[CH:42][CH:43]=3)=[O:35])=[CH:32][CH:31]=2)=[N:22][CH:21]=1.CC([O-])(C)C.[Na+]>CN(C=O)C.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([O:3][C:4]1[CH:9]=[C:8]([C:20]2[N:25]3[CH:26]=[CH:27][N:28]=[C:24]3[C:23]([NH:29][C:30]3[CH:31]=[CH:32][C:33]([C:34]([NH:36][CH2:37][C:38]4[CH:39]=[N:40][CH:41]=[CH:42][CH:43]=4)=[O:35])=[CH:44][CH:45]=3)=[N:22][CH:21]=2)[CH:7]=[CH:6][N:5]=1)[CH3:2]
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참가 물질

6

반응물 3

HCID 23676156Sodium t-butoxideHCID 457860072-Ethoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridineHCID 866167454-(5-bromoimidazo[1,2-a]pyrazin-8-ylamino)-N-pyridin-3-ylmethyl benzamide

생성물 1

HCID 866167464-[5-(2-Ethoxypyridin-4-yl)imidazo[1,2-a]pyrazin-8-ylamino]-N-pyridin-3-ylmethyl benzamide

시약·촉매·용매 2

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 21962138N,N-Dimethylformamide--water (1/1)용매

반응 조건

온도
85 °C

실험 절차

A mixture of 2-ethoxy-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)pyridine (85 mg, 0.34 mmol), 4-(5-bromoimidazo[1,2-a]pyrazin-8-ylamino)-N-pyridin-3-ylmethyl benzamide (150 mg, 0.35 mmol), Pd(PPh3)4 (33 mg, 0.028 mmol) and NaOtBu (109 mg, 1.1 mmol) in DMF:water (3:1, 9 mL) is heated at 85° C. for 18 hours. After this time the reaction mixture is cooled to room temperature and the solvents removed in vacuo. The residue is chromatographed on silica gel, eluting with DCM followed by 95:5 DCM:NH3 (7M in MeOH), and the fractions containing the desired product are combined and evaporated to afford the title ethoxypyridine as a solid.

후처리

  1. temperatureAfter this time the reaction mixture is cooled to room temperature
  2. customthe solvents removed in vacuo
  3. customThe residue is chromatographed on silica gel
  4. washeluting with DCM
  5. additionNH3 (7M in MeOH), and the fractions containing the desired product
  6. customevaporated

출처 및 근거

ORD 기록
ord-88b12a7ccf184fc18ac9e1a253090d2c
출처 데이터셋
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08173656B2

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