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Sodium Bicarbonate → 2-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-N5-[1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyrimidine-4,5-diamine

HRID 510064
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HRID 510064 반응식
[F:1][C:2]1[CH:25]=[CH:24][CH:23]=[CH:22][C:3]=1[CH2:4][N:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[C:7]([C:14]2[N:19]=[C:18]([NH2:20])[C:17]([NH2:21])=[CH:16][N:15]=2)=[N:6]1.[F:26][C:27]([F:37])([F:36])[CH2:28][N:29]1[CH2:34][CH2:33][C:32](=O)[CH2:31][CH2:30]1.C([BH3-])#N.[Na+].C(=O)([O-])O.[Na+]>CO.C(O)(=O)C>[F:1][C:2]1[CH:25]=[CH:24][CH:23]=[CH:22][C:3]=1[CH2:4][N:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[C:7]([C:14]2[N:19]=[C:18]([NH2:20])[C:17]([NH:21][CH:32]3[CH2:31][CH2:30][N:29]([CH2:28][C:27]([F:37])([F:26])[F:36])[CH2:34][CH2:33]3)=[CH:16][N:15]=2)=[N:6]1
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참가 물질

7

반응물 4

HCID 516892Sodium BicarbonateHCID 5003444Sodium cyanoborohydride2회HCID 178400091-(2,2,2-Trifluoroethyl)piperidin-4-one2회HCID 219348172-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-4,5-pyrimidinediamine

생성물 1

HCID 666348972-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-N5-[1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyrimidine-4,5-diamine
수율 90.2%

시약·촉매·용매 2

HCID 176Acetic Acid용매2회HCID 887Methanol용매

실험 절차

200 mg (0.596 mmol) of 2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidine-4,5-diamine (synthesis described in US2004/67937; Example V) were initially charged in methanol (16 ml) and admixed with 75 μl (1.312 mmol) of acetic acid, and then 237 mg (1.312 mmol) of 1-(2,2,2-trifluoroethyl)piperidin-4-one were added. After stirring at RT for 15 min, 104 mg (1.67 mmol) of sodium cyanoborohydride were added and the mixture was stirred at RT for 2.5 h. Subsequently, within 2 days, the above-stated amounts of reagents (1-(2,2,2-trifluoroethyl)piperidin-4-one, acetic acid, sodium cyanoborohydride) were added three times, in order to achieve substantially full conversion. Thereafter, saturated aqueous sodium hydrogencarbonate solution (5 ml) was added to the reaction mixture, which was stirred vigorously for 10 min. Subsequently, the reaction mixture was extracted with water and ethyl acetate. The phases were separated and the aqueous phase was extracted twice with ethyl acetate. The combined organic phases were washed with saturated aqueous sodium chloride solution, dried over sodium sulfate, filtered, concentrated and then purified by means of preparative HPLC (acetonitrile:water (+0.05% formic acid) gradient). 269 mg of the title compound were obtained (90% of theory).

후처리

  1. stirringthe mixture was stirred at RT for 2.5 h
  2. waitSubsequently, within 2 days
  3. stirringwas stirred vigorously for 10 min
  4. extractionSubsequently, the reaction mixture was extracted with water and ethyl acetate
  5. customThe phases were separated
  6. extractionthe aqueous phase was extracted twice with ethyl acetate
  7. washThe combined organic phases were washed with saturated aqueous sodium chloride solution
  8. dry with materialdried over sodium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated
  11. custompurified by means of preparative HPLC (acetonitrile:water (+0.05% formic acid) gradient)

출처 및 근거

ORD 기록
ord-2b1fdd82d0c64e3ebd9e76760655ad4a
출처 데이터셋
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09096592B2

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