Water → tert-butyl 4-[2-chloro-4-({5-[2-(2-hydroxyethoxy)ethyl]-5H-pyrrolo[3,2-d]pyrimidin-4-yl}amino)phenoxy]piperidine-1-carboxylate

HRID 1926160Notes

Reaction equation

HRID 1926160 reaction equation
C([O:9][CH2:10][CH2:11][O:12][CH2:13][CH2:14][N:15]1[C:23]2[C:22]([NH:24][C:25]3[CH:44]=[CH:43][C:28]([O:29][CH:30]4[CH2:35][CH2:34][N:33]([C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37])[CH2:32][CH2:31]4)=[C:27]([Cl:45])[CH:26]=3)=[N:21][CH:20]=[N:19][C:18]=2[CH:17]=[CH:16]1)(=O)C1C=CC=CC=1.O>CO.O1CCCC1.[OH-].[Na+]>[Cl:45][C:27]1[CH:26]=[C:25]([NH:24][C:22]2[C:23]3[N:15]([CH2:14][CH2:13][O:12][CH2:11][CH2:10][OH:9])[CH:16]=[CH:17][C:18]=3[N:19]=[CH:20][N:21]=2)[CH:44]=[CH:43][C:28]=1[O:29][CH:30]1[CH2:35][CH2:34][N:33]([C:36]([O:38][C:39]([CH3:40])([CH3:41])[CH3:42])=[O:37])[CH2:32][CH2:31]1

Participants

6

Reactant 2

HCID 962WaterHCID 67520588tert-butyl 4-{4-[(5-{2-[2-(benzoyloxy)ethoxy]ethyl}-5H-pyrrolo[3,2-d]pyrimidin-4-yl)amino]-2-chlorophenoxy}piperidine-1-carboxylate

Product 1

HCID 57597228tert-butyl 4-[2-chloro-4-({5-[2-(2-hydroxyethoxy)ethyl]-5H-pyrrolo[3,2-d]pyrimidin-4-yl}amino)phenoxy]piperidine-1-carboxylateYield 93.6%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolventHCID 14798Sodium HydroxideSolvent

Procedure

tert-Butyl 4-{4-[(5-{2-[2-(benzoyloxy)ethoxy]ethyl}-5H-pyrrolo[3,2-d]pyrimidin-4-yl)amino]-2-chlorophenoxy}piperidine-1-carboxylate (636 mg) was dissolved in a mixed solvent of methanol (10 mL) and tetrahydrofuran (10 mL), 1N aqueous sodium hydroxide solution (2 mL) was added, and the mixture was stirred overnight at room temperature. Water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the obtained residue was subjected to basic silica gel column chromatography (eluent, methanol:ethyl acetate=0:100→10:90). The object fraction was concentrated under reduced pressure. The solvent was evaporated under reduced pressure and the obtained residue was crystallized from ethyl acetate-diethyl ether to give the title compound (498 mg) as a white powder.

Workup

  1. additionwas added
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. concentrationThe object fraction was concentrated under reduced pressure
  7. customThe solvent was evaporated under reduced pressure
  8. customthe obtained residue was crystallized from ethyl acetate-diethyl ether

Sources & evidence

ORD record
ord-fef64ca0b1094bcdb2f5f16c313c54ea
Source dataset
uspto-grants-2012_05
Patent number
US08178543B2

Reaction notes

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