Diethyl Ether → 9-Cyclopentyl-2-((5-((3R)-3-hydroxy-1-pyrrolidinyl)-2-pyridinyl)amino)-8-methyl-8,9-dihydro-7H-pyrido[3',2':4,5]pyrrolo[2,3-d]pyrimidin-7-one

HRID 79169Notes

Reaction equation

HRID 79169 reaction equation
[CH:1]1([N:6]2[C:10]3[N:11]=[C:12]([NH:15][C:16]4[CH:21]=[CH:20][C:19]([N:22]5[CH2:26][CH2:25][C@@H:24]([O:27][Si](C(C)(C)C)(C)C)[CH2:23]5)=[CH:18][N:17]=4)[N:13]=[CH:14][C:9]=3[C:8]3[CH:35]=[CH:36][C:37](=[O:40])[N:38]([CH3:39])[C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC.C([O-])(O)=O.[Na+].C(OCC)C>C1COCC1.CO>[CH:1]1([N:6]2[C:10]3[N:11]=[C:12]([NH:15][C:16]4[CH:21]=[CH:20][C:19]([N:22]5[CH2:26][CH2:25][C@@H:24]([OH:27])[CH2:23]5)=[CH:18][N:17]=4)[N:13]=[CH:14][C:9]=3[C:8]3[CH:35]=[CH:36][C:37](=[O:40])[N:38]([CH3:39])[C:7]2=3)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

7

Reactant 4

HCID 3283Diethyl EtherHCID 516892Sodium BicarbonateHCID 2724141Tetrabutylammonium FluorideHCID 582996139-Cyclopentyl-2-((5-((3R)-3-(tert-butyldimethylsilyloxy)pyrrolidin-1-yl)-2-pyridinyl)amino)-8-methyl-8,9-dihydro-7H-pyrido[3',2':4,5]pyrrolo[2,3-d]-pyrimidin-7-one

Product 1

HCID 582999849-Cyclopentyl-2-((5-((3R)-3-hydroxy-1-pyrrolidinyl)-2-pyridinyl)amino)-8-methyl-8,9-dihydro-7H-pyrido[3',2':4,5]pyrrolo[2,3-d]pyrimidin-7-oneYield 50%

Reagents, catalysts & solvents 2

HCID 887MethanolSolvent2×HCID 8028TetrahydrofuranSolvent2×

Procedure

Compound 276 (53.0 mg, 94.7 μmol) was dissolved in THF (2 mL).). Tetrabutylammonium fluoride, 1.0M in THF (0.500 mL, 500 μmol) was added and the reaction was stirred at room temperature for 4.5 hours. The solvent was evaporated to give an orange oil. Preparative reverse phase HPLC (gradient elution 0.1% TFA in water/10-70% acetonitrile) afforded a yellow solid. This residue was added to aqueous NaHCO3 (saturated, 10 mL) and extracted with dichloromethane+10% methanol (3×30 mL). The combined organics were dried (MgSO4) and evaporated to give a yellow solid. This product was taken up in methanol (2 mL) and 1 mL methanol (saturated at room temperature with HCl) was added. 20 mL diethyl ether was added to precipitate the product, which was washed with ether and dried in vacuo to give compound 275 as yellow solid (21 mg, 50%). 1H NMR (500 MHz, DMSO-d6) δ 9.21 (s, 2 H) 8.56 (d, J=8.56 Hz, 2 H) 7.63 (d, J=2.69 Hz, 4 H) 7.44-7.57 (m, 2 H) 6.87 (d, J=8.56 Hz, 2 H) 5.43 (quin, J=8.62 Hz, 1 H) 4.47 (br. s., 1 H) 4.00 (s, 3 H) 3.09-3.21 (m, 1H) 2.00-2.22 (m, 5 H) 1.90-2.04 (m, 1 H) 1.66-1.85 (m, 2 H) ppm.

Workup

  1. customThe solvent was evaporated
  2. customto give an orange oil
  3. washPreparative reverse phase HPLC (gradient elution 0.1% TFA in water/10-70% acetonitrile)
  4. customafforded a yellow solid
  5. extractionextracted with dichloromethane+10% methanol (3×30 mL)
  6. dry with materialThe combined organics were dried (MgSO4)
  7. customevaporated
  8. customto give a yellow solid
  9. customto precipitate the product, which
  10. washwas washed with ether
  11. customdried in vacuo

Sources & evidence

ORD record
ord-d3216716a00a45069d717770bbc2dae0
Source dataset
uspto-grants-2014_09
Patent number
US08841312B2

Reaction notes

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