Pyridine → N,N'-Di-tert-butoxycarbonyl-7-(1-acetylpiperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine

HRID 412566Notes

Reaction equation

HRID 412566 reaction equation
[C:1]([O:5][C:6]([NH:8][C:9]([N:18]1[CH2:27][CH2:26][C:25]2[C:20](=[CH:21][C:22]([O:28][CH2:29][CH:30]3[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]3)=[CH:23][CH:24]=2)[CH2:19]1)=[N:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:36](OC(=O)C)(=[O:38])[CH3:37].N1C=CC=CC=1>O1CCCC1>[C:14]([O:13][C:11]([NH:10][C:9]([N:18]1[CH2:27][CH2:26][C:25]2[C:20](=[CH:21][C:22]([O:28][CH2:29][CH:30]3[CH2:35][CH2:34][N:33]([C:36](=[O:38])[CH3:37])[CH2:32][CH2:31]3)=[CH:23][CH:24]=2)[CH2:19]1)=[N:8][C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])=[O:12])([CH3:17])([CH3:16])[CH3:15]

Participants

5

Reactant 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 60064218N,N'-ditert-butoxycarbonyl-7-(piperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine

Product 1

HCID 69696566N,N'-Di-tert-butoxycarbonyl-7-(1-acetylpiperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of N,N′-ditert-butoxycarbonyl-7-(piperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine (100 mg) in tetrahydrofuran (1.5 ml) were added acetic anhydride (0.021 ml) and pyridine (0.025 ml), and the mixture was stirred at room temperature for 2 hours. After completion of the reaction, the mixture was extracted with ethyl acetate and washed successively with water and saturated brine. The organic layer was dried over anhydrous sodium sulfate and the solvent was evaporated. The residue was dried under reduced pressure to give the title compound (100 mg).

Workup

  1. customAfter completion of the reaction
  2. extractionthe mixture was extracted with ethyl acetate
  3. washwashed successively with water and saturated brine
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. customthe solvent was evaporated
  6. customThe residue was dried under reduced pressure

Sources & evidence

ORD record
ord-46c40effe0774e4ab6a8c5a26a931e2e
Source dataset
uspto-grants-2003_05
Patent number
US06562828B1

Reaction notes

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