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Potassium Carbonate → 3-[3-(5-Acetyl-thiophen-2-yl)-imidazo[1,2-b]pyridazin-6-ylamino]-propionic acid methyl ester

HRID 870687
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HRID 870687 반응식
Br[C:2]1[N:6]2[N:7]=[C:8]([NH:11][CH2:12][CH2:13][C:14]([O:16][CH3:17])=[O:15])[CH:9]=[CH:10][C:5]2=[N:4][CH:3]=1.[C:18]([C:21]1[S:25][C:24](B(O)O)=[CH:23][CH:22]=1)(=[O:20])[CH3:19].C([O-])([O-])=O.[K+].[K+]>C(N(CC)CC)C>[CH3:17][O:16][C:14](=[O:15])[CH2:13][CH2:12][NH:11][C:8]1[CH:9]=[CH:10][C:5]2[N:6]([C:2]([C:24]3[S:25][C:21]([C:18](=[O:20])[CH3:19])=[CH:22][CH:23]=3)=[CH:3][N:4]=2)[N:7]=1
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참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 4143377(5-Acetylthiophen-2-yl)boronic acidHCID 89802256HCID 89802256, 화합물

생성물 1

HCID 898024883-[3-(5-Acetyl-thiophen-2-yl)-imidazo[1,2-b]pyridazin-6-ylamino]-propionic acid methyl ester수율 79%

시약·촉매·용매 1

HCID 8471Triethylamine용매

실험 절차

The methyl 3-((3-bromoimidazo[1,2-b]pyridazin-6-yl)amino)propanoate was then subjected to Suzuki coupling reaction with (5-acetyl-thiophen-2-yl)boronic acid as described in example 5.6.19. However for this reaction, triethylamine was used as the base in place of the regular base (K2CO3). The desired product was obtained in 79% yield. 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 2.62-2.65 (m, 3H) 2.88 (t, J=5.94 Hz, 2H) 3.77 (s, 3H) 3.88 (t, J=5.68 Hz, 2H) 7.06 (d, J=9.85 Hz, 1H) 7.70 (d, J=4.04 Hz, 1H) 7.77 (d, J=4.04 Hz, 1H) 8.15 (s, 1H) 8.33 (d, J=9.85 Hz, 1H); LRMS (ESI) m/e 345.0 [(M+H)+, calcd for C16H16N4O3S 344.0].

출처 및 근거

ORD 기록
ord-eaa45d7c0fd54d57bc44947cb51bd5c0
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08969565B2

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