Diisopropylethylamine → 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-2-methoxy-1-methyl-ethyl)-amide

HRID 246227노트

반응식

HRID 246227 반응식
[Br:1][C:2]1[N:3]=[C:4]2[C:10]([C:11]([OH:13])=O)=[CH:9][N:8]([CH2:14][O:15][CH2:16][CH2:17][Si:18]([CH3:21])([CH3:20])[CH3:19])[C:5]2=[N:6][CH:7]=1.[CH3:22][O:23][CH2:24][C@@H:25]([NH2:27])[CH3:26].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CC(=O)OCC.CN(C=O)C>[CH3:22][O:23][CH2:24][C@@H:25]([NH:27][C:11]([C:10]1[C:4]2[C:5](=[N:6][CH:7]=[C:2]([Br:1])[N:3]=2)[N:8]([CH2:14][O:15][CH2:16][CH2:17][Si:18]([CH3:21])([CH3:20])[CH3:19])[CH:9]=1)=[O:13])[CH3:26]

참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 70215362-Propanamine, 1-methoxy-, (2S)-HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 584385252-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid

생성물 1

HCID 866779092-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-2-methoxy-1-methyl-ethyl)-amide

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

To a mixture of 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (2.0 g, 5.37 mmol), (S)-1-methoxypropan-2-amine (718 mg, 8.06 mmol), and HATU (4.09 g, 10.7 mmol) were added DMF (20 mL) and DIPEA (3.75 mL, 21.5 mmol) at room temperature under nitrogen atmosphere. The resulting solution was stirred for 15 h at room temperature at which time LCMS analysis and TLC (1:1, Hex:EA, Rf=0.4) system indicated the presence of the desired compound. The reaction was diluted with water (−100 mL), the organic compound was extracted with ethyl acetate (3×50 mL) and the combined extracts were washed with brine solution. After drying over MgSO4, the filtrate was concentrated to obtain the crude light brown solid (−4.1 g) which was purified by chromatography using an ISCO (120 g) column eluting with hexanes (1 min), 0-30% EA in hexanes (2 min), 30-60% EA in hexanes (15 min) to obtain 1.9 g (80%) of 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-2-methoxy-1-methyl-ethyl)-amide as a white solid.

출처 및 근거

ORD 기록
ord-61938d87328b430497c95ad2f3a1a8ee
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08658646B2

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