Ammonium Chloride → HCID 178462869, 화합물

HRID 1666275노트

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HRID 1666275 반응식
[NH2:1][C:2]1[N:3]=[C:4]([CH3:17])[C:5]2[CH:11]=[C:10]([C:12]#[CH:13])[C:9](=[O:14])[N:8]([CH2:15][CH3:16])[C:6]=2[N:7]=1.[N-:18]=[N+:19]=[N-:20].[Na+].[Cl-].[NH4+]>CN(C=O)C>[NH2:1][C:2]1[N:3]=[C:4]([CH3:17])[C:5]2[CH:11]=[C:10]([C:12]3[NH:20][N:19]=[N:18][CH:13]=3)[C:9](=[O:14])[N:8]([CH2:15][CH3:16])[C:6]=2[N:7]=1

참가 물질

5

반응물 3

HCID 25517Ammonium ChlorideHCID 33557Sodium AzideHCID 576069672-amino-8-ethyl-6-ethynyl-4-methylpyrido[2,3-d]pyrimidin-7(8H)-one

생성물 1

HCID 178462869HCID 178462869, 화합물수율 6%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
120 °C

실험 절차

Anhydrous DMF (5.0 mL) was added to a flask charged with 2-amino-8-ethyl-6-ethynyl-4-methylpyrido[2,3-d]pyrimidin-7(8H)-one (0.204 g, 0.894 mmol), sodium azide (0.070 g, 1.07 mmol), and ammonium chloride (0.057 g, 1.07 mmol). The reaction was capped under nitrogen and heated to 120° C. After 48 h, the reaction was cooled to room temperature and concentrated in vacuo. The residue was purified on reverse phase HPLC (acetonitrile: water 0.1% TFA, 20-60% gradient). The fractions containing product were collected and concentrated to one half volume and poured into saturated NaHCO3 (50 mL). The aqueous phase was washed trice with ethyl acetate (50 mL) and dried over Na2SO4, filtered, and concentrated in vacuo. The residue was triturated with methylene chloride and ethyl acetate to afford 2-amino-8-ethyl-4-methyl-6-(1H-1,2,3-triazol-5-yl)pyrido[2,3-d]pyrimidin-7(8H)-one (14 mg, 6% yield) as a light yellow solid: 1H NMR (400 MHz, DMSO-d6): δ 8.55 (bs, 1H), 8.41 (bs, 1H), 7.32 (bs, 2H), 4.37 (q, J=7.2 Hz, 2H), 2.60 (s, 3H), 1.21 (t, J=7.2 Hz, 3H); MS (EI) for C12H13N7O: 272.0 (MH+).

후처리

  1. customThe reaction was capped under nitrogen
  2. temperaturethe reaction was cooled to room temperature
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified on reverse phase HPLC (acetonitrile: water 0.1% TFA, 20-60% gradient)
  5. additionThe fractions containing product
  6. customwere collected
  7. concentrationconcentrated to one half volume
  8. additionpoured into saturated NaHCO3 (50 mL)
  9. washThe aqueous phase was washed trice with ethyl acetate (50 mL)
  10. dry with materialdried over Na2SO4
  11. filtrationfiltered
  12. concentrationconcentrated in vacuo
  13. customThe residue was triturated with methylene chloride and ethyl acetate

출처 및 근거

ORD 기록
ord-043cb47a0d044a7e9097350e8ba35808
출처 데이터셋
uspto-grants-2011_10
특허 번호
US08044062B2

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