Trifluoroacetic acid → 2-(2-methyl-3-(piperidin-4-ylamino)quinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one

HRID 1055884노트

반응식

HRID 1055884 반응식
[CH3:1][C:2]1[C:3]([NH:22][CH:23]2[CH2:28][CH2:27][N:26](C(OC(C)(C)C)=O)[CH2:25][CH2:24]2)=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][CH:8]=[CH:7][C:6]=2[C:12]1[NH:20][C:19]2[CH2:18][CH2:17][NH:16][C:15](=[O:21])[C:14]=2[CH:13]=1.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH3:1][C:2]1[C:3]([NH:22][CH:23]2[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]2)=[N:4][C:5]2[C:10](=[CH:9][CH:8]=[CH:7][C:6]=2[C:12]2[NH:20][C:19]3[CH2:18][CH2:17][NH:16][C:15](=[O:21])[C:14]=3[CH:13]=2)[N:11]=1

참가 물질

5

반응물 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 89793635tert-butyl 4-((3-methyl-8-(4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridin-2-yl)quinoxalin-2-yl)amino)piperidine-1-carboxylate

생성물 1

HCID 897834662-(2-methyl-3-(piperidin-4-ylamino)quinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one수율 6.8%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of tert-butyl 4-((3-methyl-8-(4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridin-2-yl)quinoxalin-2-yl)amino)piperidine-1-carboxylate (Ex. 47, 80 mg, 0.168 mmol) in DCM (1.7 mL) was stirred at 25° C. before adding TFA (12.47 μl, 0.168 mmol, Sigma Aldrich). The resulting solution was stirred for 30 min before carefully adding saturated aq. NaHCO3 (10 mL) and stirring for an additional 30 min. The reaction mixture was then concentrating under reduced pressure, and the residue was taken up in DMSO and purified by reverse-phase preparative HPLC (Phenomenex Gemini column, 10 micron, C18, 100 Å, 150×30 mm, 0.1% TFA in ACN/H2O, gradient 5% to 80%). The product-containing fractions were concentrated under reduced pressure, and the residue was loaded onto a pre-washed (MeOH, 1 volume) functionalized Si-carbonate column (Silicyle) and allowed to percolate through, providing 2-(2-methyl-3-(piperidin-4-ylamino)quinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one (4.3 mg, 6.8%). 1H NMR (400 MHz, DMSO-d6) δ ppm 11.92 (1H, s) 7.83-7.91 (1H, m) 7.52-7.58 (2H, m) 7.28-7.35 (1H, m) 7.11-7.16 (1H, m) 3.98-4.11 (3H, m) 3.41-3.49 (2H, m) 2.97-3.06 (2H, m) 2.89 (2H, s) 2.59-2.71 (2H, m) 2.54 (3H, s) 1.93-2.04 (2H, m) 1.43-1.59 (2H, m). m/z (ESI, +ve) 377.1 (M+H)+.

후처리

  1. concentrationThe reaction mixture was then concentrating under reduced pressure
  2. custompurified by reverse-phase preparative HPLC (Phenomenex Gemini column, 10 micron, C18, 100 Å, 150×30 mm, 0.1% TFA in ACN/H2O, gradient 5% to 80%)
  3. concentrationThe product-containing fractions were concentrated under reduced pressure
  4. washa pre-washed (MeOH, 1 volume) functionalized Si-carbonate column (Silicyle)

출처 및 근거

ORD 기록
ord-043b9d277f1a44a8a6392e26ad46e03b
출처 데이터셋
uspto-grants-2016_07
특허 번호
US09394297B2

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