Hydrochloric Acid → 6-[(2,2-Diphenylethyl)amino]-N-[2-(1-piperidinyl)ethyl]-9H-purine-2-carboxamide

HRID 1060549Notes

Reaction equation

HRID 1060549 reaction equation
[C:1]1([CH:7]([C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)[CH2:8][NH:9][C:10]2[N:18]=[C:17]([C:19]([NH:21][CH2:22][CH2:23][N:24]3[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]3)=[O:20])[N:16]=[C:15]3[C:11]=2[N:12]=[CH:13][N:14]3C2CCCCO2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl>C(O)C>[C:36]1([CH:7]([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH2:8][NH:9][C:10]2[N:18]=[C:17]([C:19]([NH:21][CH2:22][CH2:23][N:24]3[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]3)=[O:20])[N:16]=[C:15]3[C:11]=2[N:12]=[CH:13][NH:14]3)[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 102809386-[(2,2-Diphenylethyl)amino]-N-[2-(1-piperidinyl)ethyl]-9-tetrahydro-2H-pyran-2-yl-9H-purine-2-carboxamide

Product 1

HCID 1785234056-[(2,2-Diphenylethyl)amino]-N-[2-(1-piperidinyl)ethyl]-9H-purine-2-carboxamideYield 89.4%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of 6-[(2,2-diphenylethyl)amino]-N-[2-(1-piperidinyl)ethyl]-9-tetrahydro-2H-pyran-2-yl-9H-purine-2-carboxamide (Preparation 5) (420 mg, 0.76 mmol) in ethanol (20 ml) was treated with hydrochloric acid (2 M, 0.9 ml). The mixture was heated at reflux for 30 minutes after which time a white precipitate had formed. The mixture was cooled to room temperature and the solvent was removed under reduced pressure. The residue was partitioned between dichloromethane and 10% weight by volume aqueous ammonia. The organic phase was separated, dried over anhydrous magnesium sulphate, filtered and evaporated under reduced pressure to afford the title compound as a white solid (319 mg).

Workup

  1. temperatureThe mixture was heated
  2. temperatureat reflux for 30 minutes after which time a white precipitate
  3. customhad formed
  4. customthe solvent was removed under reduced pressure
  5. customThe residue was partitioned between dichloromethane and 10% weight by volume aqueous ammonia
  6. customThe organic phase was separated
  7. dry with materialdried over anhydrous magnesium sulphate
  8. filtrationfiltered
  9. customevaporated under reduced pressure

Sources & evidence

ORD record
ord-6861e1958def420787c2da557b233264
Source dataset
uspto-grants-2003_02
Patent number
US06525032B2

Reaction notes

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