Tributyltin Chloride → HCID 67117498, 화합물

HRID 1366144노트

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HRID 1366144 반응식
[C:1]([O:5][C:6](=[O:31])[N:7]([C:21]1[C:22]2[N:23]([CH:28]=[CH:29][N:30]=2)[C:24](Br)=[CH:25][N:26]=1)[C:8]1[CH:13]=[CH:12][C:11]([N:14]2[CH2:19][CH2:18][N:17]([CH3:20])[CH2:16][CH2:15]2)=[CH:10][CH:9]=1)([CH3:4])([CH3:3])[CH3:2].C([Mg]Cl)(C)C.[CH2:37]([Sn:41](Cl)([CH2:46][CH2:47][CH2:48][CH3:49])[CH2:42][CH2:43][CH2:44][CH3:45])[CH2:38][CH2:39][CH3:40]>C1COCC1>[NH3:7].[C:1]([O:5][C:6](=[O:31])[N:7]([C:8]1[CH:13]=[CH:12][C:11]([N:14]2[CH2:19][CH2:18][N:17]([CH3:20])[CH2:16][CH2:15]2)=[CH:10][CH:9]=1)[C:21]1[C:22]2[N:23]([CH:28]=[CH:29][N:30]=2)[C:24]([Sn:41]([CH2:42][CH2:43][CH2:44][CH3:45])([CH2:46][CH2:47][CH2:48][CH3:49])[CH2:37][CH2:38][CH2:39][CH3:40])=[CH:25][N:26]=1)([CH3:4])([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 15096Tributyltin ChlorideHCID 86616747HCID 86616747, 화합물HCID 178418918HCID 178418918, 화합물

생성물 2

HCID 222AmmoniaHCID 67117498HCID 67117498, 화합물수율 148%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

In the same way as described for Compound 212, step 2, using a solution of (5-bromo-imidazo[1,2-a]pyrazin-8-yl)-[4-(4-methyl-piperazin-1-yl)-phenyl]-carbamic acid tert-butyl ester (0.3 g, 0.62 mmol) in THF (5 mL), and isopropylmagnesium chloride (0.46 mL of a 2M solution in THF, 0.67 mmol). After stirring for 5 min, tributyltin chloride (0.28 mL, 1.04 mmol) is added and the reaction is stirred at −78° C. for 10 min before being allowed to warm to room temperature. After stirring at room temperature for 30 min, the mixture is concentrated. The crude mixture is purified by silica gel flash column chromatography using 95:5 DCM:NH3 (7M in MeOH), to give [4-(4-methyl-piperazin-1-yl)-phenyl]-(5-tributylstannanyl-imidazo[1,2-a]pyrazin-8-yl)-carbamic acid tert-butyl ester (0.32 g, 70%) as a yellow oil. LCMS: Rt 7.03 min (92.3%), m/z (ES+) 695, 697, 699.

후처리

  1. stirringthe reaction is stirred at −78° C. for 10 min
  2. stirringAfter stirring at room temperature for 30 min
  3. concentrationthe mixture is concentrated
  4. customThe crude mixture is purified by silica gel flash column chromatography

출처 및 근거

ORD 기록
ord-75add54ab8fa447ebd25ea3e162895a0
출처 데이터셋
uspto-grants-2011_02
특허 번호
US07893058B2

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