Diisopropylamine → {2-Chloro-9-[(1R,4S)-4-(5-ethyl-tetrazol-2-yl)-cyclopent-2-enyl]-9H-purin-6-yl}-(2,2-diphenyl-ethyl)-amine

HRID 1641888Notes

Reaction equation

HRID 1641888 reaction equation
[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[C@@H:11]2[CH2:15][C@H:14]([N:16]3[N:20]=[N:19][C:18]([CH2:21][CH3:22])=[N:17]3)[CH:13]=[CH:12]2)=[C:4](Cl)[N:3]=1.C(NC(C)C)(C)C.[C:31]1([CH:37]([C:40]2[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=2)[CH2:38][NH2:39])[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1>C1COCC1>[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[C@@H:11]2[CH2:15][C@H:14]([N:16]3[N:20]=[N:19][C:18]([CH2:21][CH3:22])=[N:17]3)[CH:13]=[CH:12]2)=[C:4]([NH:39][CH2:38][CH:37]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:40]2[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=2)[N:3]=1

Participants

5

Reactant 3

HCID 7912DiisopropylamineHCID 775752,2-DiphenylethylamineHCID 866228002,6-Dichloro-9-[(1R,4S)-4-(5-ethyl-tetrazol-2-yl)-cyclopent-2-enyl]-9H-purine

Product 1

HCID 86622801{2-Chloro-9-[(1R,4S)-4-(5-ethyl-tetrazol-2-yl)-cyclopent-2-enyl]-9H-purin-6-yl}-(2,2-diphenyl-ethyl)-amine

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

2,6-Dichloro-9-[(1R,4S)-4-(5-ethyl-tetrazol-2-yl)-cyclopent-2-enyl]-9H-purine (step 1) (0.2 g, 0.57 mmol) is dissolved in THF (5 ml) under an atmosphere of argon. Diisopropylamine (0.088 g, 0.68 mmol) is added followed by 2,2-diphenylethylamine (0.123 g, 0.63 mmol) and the reaction mixture is stirred at 50° C. for 4 hours. The solvent is removed in vacuo and residue is partitioned between dichloromethane (20 mL) and 2M HCl (20 mL). The organic layer is washed with sat. NaHCO3 (20 mL), water (20 ml) and brine (20 ml), dried over MgSO4, filtered and the solvent is removed in vacuo to give the title compound. 1H nmr (CDCl3, 400 MHz); 8.20 (br s, 1H), 7.30-7.10 (m, 10H), 6.30 (m, 1H), 6.20 (m, 1H), 5.95 (m, 1H), 5.80 (m, 1H), 4.35 (m, 1H), 4.20 (m, 2H), 3.35 (m, 1H), 2.85 (q, 2H), 2.20 (m, 1H), 1.30 (t, 3H), MS (ES+) m/e 512 (MH+).

Workup

  1. customThe solvent is removed in vacuo and residue
  2. customis partitioned between dichloromethane (20 mL) and 2M HCl (20 mL)
  3. washThe organic layer is washed with sat. NaHCO3 (20 mL), water (20 ml) and brine (20 ml)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. customthe solvent is removed in vacuo

Sources & evidence

ORD record
ord-08531d720e22486cbb0ffd418634bf51
Source dataset
uspto-grants-2012_02
Patent number
US08114877B2

Reaction notes

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