Sodium Carbonate → (S)-methyl 2-(1-(tert-butoxycarbonyl)-1H-indazol-5-yl)-3-(2-methyl-4-(pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylate

HRID 1403513

반응식

HRID 1403513 반응식
[CH3:1][C@H:2]1[CH2:7][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=2)[CH2:5][CH2:4][N:3]1[C:14]1[C:15](OS(C(F)(F)F)(=O)=O)=[N:16][C:17]2[C:22]([N:23]=1)=[CH:21][C:20]([C:24]([O:26][CH3:27])=[O:25])=[CH:19][CH:18]=2.C(=O)([O-])[O-].[Na+].[Na+].CC1(C)OB([C:48]2[CH:49]=[C:50]3[C:54](=[CH:55][CH:56]=2)[N:53]([C:57]([O:59][C:60]([CH3:63])([CH3:62])[CH3:61])=[O:58])[N:52]=[CH:51]3)OC1(C)C>COCCOC.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>[C:60]([O:59][C:57]([N:53]1[C:54]2[C:50](=[CH:49][C:48]([C:15]3[C:14]([N:3]4[CH2:4][CH2:5][N:6]([C:8]5[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=5)[CH2:7][C@@H:2]4[CH3:1])=[N:23][C:22]4[C:17](=[CH:18][CH:19]=[C:20]([C:24]([O:26][CH3:27])=[O:25])[CH:21]=4)[N:16]=3)=[CH:56][CH:55]=2)[CH:51]=[N:52]1)=[O:58])([CH3:63])([CH3:61])[CH3:62]

참가 물질

7

반응물 3

HCID 10340Sodium CarbonateHCID 18525862tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylateHCID 86670573(S)-methyl 3-(2-methyl-4-(pyridin-2-yl)piperazin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate

생성물 1

HCID 70665358(S)-methyl 2-(1-(tert-butoxycarbonyl)-1H-indazol-5-yl)-3-(2-methyl-4-(pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylate수율 60.8%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매HCID 80711,2-Dimethoxyethane용매

반응 조건

온도
90 °C

실험 절차

To a solution of (S)-methyl 3-(2-methyl-4-(pyridin-2-yl)piperazin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate (240 mg, 0.38 mmol) in ethylene glycol dimethyl ether (20 ml) was added Pd(PPh3)4 (27 mg, 0.02 mmol), sodium carbonate (74.3 mg, 0.69 mmol) in water (6 ml), and tert-butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate (300 mg, 0.87 mmol). After stirring 90 minutes at 90° C. in an oil bath, the reaction was then quenched by the addition of water (200 ml), extracted with dichloromethane (3×30 ml), dried over anhydrous magnesium sulfate and concentrated under vacuum to afford a residue, which was purified via silica gel chromatography (20% ethyl acetate in petroleum ether) to afford (S)-methyl 2-(1-(tert-butoxycarbonyl)-1H-indazol-5-yl)-3-(2-methyl-4-(pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylate as a yellow solid (134 mg, 60%).

후처리

  1. customthe reaction was then quenched by the addition of water (200 ml)
  2. extractionextracted with dichloromethane (3×30 ml)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under vacuum
  5. customto afford a residue, which
  6. customwas purified via silica gel chromatography (20% ethyl acetate in petroleum ether)

출처 및 근거

ORD 기록
ord-049a0f96a5c44bcc8258a86593979ea9
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08912188B2

연결된 노트

불러오는 중…