Potassium Carbonate → (R)-5-[2-(1-Hydroxy-ethyl)-pyrimidin-4-yl]-1-methyl-2-quinoxalin-2-yl-1,2,4,5,6,7-hexahydro-pyrazolo[4,3-c]pyridin-3-one

HRID 2227814노트

반응식

HRID 2227814 반응식
C([O:6][C@@H:7]([C:9]1[N:14]=[C:13]([N:15]2[CH2:20][CH2:19][C:18]3[N:21]([CH3:35])[N:22]([C:25]4[CH:34]=[N:33][C:32]5[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=5)[N:26]=4)[C:23](=[O:24])[C:17]=3[CH2:16]2)[CH:12]=[CH:11][N:10]=1)[CH3:8])(=O)CCC.C(=O)([O-])[O-].[K+].[K+]>CO.O1CCCC1>[OH:6][C@@H:7]([C:9]1[N:14]=[C:13]([N:15]2[CH2:20][CH2:19][C:18]3[N:21]([CH3:35])[N:22]([C:25]4[CH:34]=[N:33][C:32]5[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=5)[N:26]=4)[C:23](=[O:24])[C:17]=3[CH2:16]2)[CH:12]=[CH:11][N:10]=1)[CH3:8]

참가 물질

4

반응물 2

HCID 11430Potassium CarbonateHCID 20767623(R)-1-[4-(1-Methyl-3-oxo-2-quinoxalin-2-yl-1,2,3,4,6,7-hexahydro-pyrazolo[4,3-c]pyridin-5-yl)-pyrimidin-2-yl]-ethyl butyrate

생성물 1

HCID 20767626(R)-5-[2-(1-Hydroxy-ethyl)-pyrimidin-4-yl]-1-methyl-2-quinoxalin-2-yl-1,2,4,5,6,7-hexahydro-pyrazolo[4,3-c]pyridin-3-one수율 71%

시약·촉매·용매 1

HCID 21899815MeOH tetrahydrofuran용매

실험 절차

To a solution of (R)-1-[4-(1-methyl-3-oxo-2-quinoxalin-2-yl-1,2,3,4,6,7-hexahydro-pyrazolo[4,3-c]pyridin-5-yl)-pyrimidin-2-yl]-ethyl butyrate (prepared according to the method of Example 75, Step D, 248 mg, 0.52 mmol) in a 5:2 mixture of methanol/tetrahydrofuran (7 mL) was added potassium carbonate (218 mg, 1.57 mmol). This mixture was stirred at room temperature overnight and evaporated. The residue was diluted with saturated aqueous sodium bicarbonate and extracted with chloroform (3×). The combined organic extracts were dried over sodium sulfate, filtered, evaporated, and purified by flash column chromatography (1.5→3% methanol/chloroform) to give 150 mg (71%) of the title compound as a white solid. mp: 217-219° C. (dec); 1H NMR (CDCl3, 250 MHz) δ9.66 (s, 1H), 8.25 (d, 1H), 8.12 (dd, 1H), 7.99 (m, 1H), 7.68-7.78 (c, 2H), 6.47 (d, 1H), 4.72 (q, 12H), 4.32 (s, 2H), 4.19-4.14 (c, 3H), 3.41 (s, 3H), 2.80 (t, 2H), 1.51 (d, 3H); MS (APCI) 404 (MH+); [α]D +13.4 (c 1.5, CHCl3).

후처리

  1. customevaporated
  2. additionThe residue was diluted with saturated aqueous sodium bicarbonate
  3. extractionextracted with chloroform (3×)
  4. dry with materialThe combined organic extracts were dried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. custompurified by flash column chromatography (1.5→3% methanol/chloroform)

출처 및 근거

ORD 기록
ord-70bf7605171f487abfdbb92368b12b4d
출처 데이터셋
uspto-grants-2002_07
특허 번호
US06414149B1

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