Iodine → (R)-(4-(1-(2-cyano-1-cyclopentylethyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate

HRID 928482노트

반응식

HRID 928482 반응식
[C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][N:21]([C@@H:23]([CH:27]4[CH2:31][CH2:30][CH2:29][CH2:28]4)[CH2:24][CH:25]=O)[CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].O1CCCC1.[OH-].[NH4+:38].II>O>[C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][N:21]([C@@H:23]([CH:27]4[CH2:31][CH2:30][CH2:29][CH2:28]4)[CH2:24][C:25]#[N:38])[CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:4])([CH3:5])[CH3:3]

참가 물질

6

반응물 4

HCID 807IodineHCID 8028TetrahydrofuranHCID 14923Ammonium HydroxideHCID 59420185(1R)-(4-(1-(1-cyclopentyl-3-oxopropyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate

생성물 1

HCID 59420145(R)-(4-(1-(2-cyano-1-cyclopentylethyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate수율 86.8%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Method B. A solution of (1R)-(4-(1-(1-cyclopentyl-3-oxopropyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate ((R)-37, 169 mg, 0.399 mmol) in tetrahydrofuran (THF, 1.2 mL, 15 mmol) at room temperature was added a 14.3 M solution of ammonium hydroxide (NH4OH) in water (1.2 mL), followed by iodine (I2, 112 mg, 0.439 mmol, 1.1 equiv). The resulting reaction mixture was stirred at room temperature for 25 min. When LCMS showed that the reaction was deemed complete, the reaction mixture was quenched with 10% aqueous Na2S2O3 (10 mL) before being extracted with EtOAc (2×15 mL). The combined organic layers were washed with brine, dried over magnesium sulfate (MgSO4), filtered and concentrated under reduced pressure. The residue was purified by Combiflash (SiO2) with 0-60% EtOAc/hexane gradient elution to afford (R)-(4-(1-(2-cyano-1-cyclopentylethyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate ((R)-12, 145.6 mg, 167.8 mg theoretical, 86.8% yield) as a colorless foam.

후처리

  1. customThe resulting reaction mixture
  2. customthe reaction mixture was quenched with 10% aqueous Na2S2O3 (10 mL)
  3. extractionbefore being extracted with EtOAc (2×15 mL)
  4. washThe combined organic layers were washed with brine
  5. dry with materialdried over magnesium sulfate (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by Combiflash (SiO2) with 0-60% EtOAc/hexane gradient elution

출처 및 근거

ORD 기록
ord-0bc772404f70460ba41253ee838538cc
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09290506B2

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