Hydrochloric Acid → HCID 22175542, compound

HRID 1797509Notes

Reaction equation

HRID 1797509 reaction equation
[CH2:1]([O:5][C:6]1[C:15]2[C:10](=[CH:11][CH:12]=[C:13]([C:16]([O:18]C)=[O:17])[CH:14]=2)[C:9](=[O:20])[N:8]([CH2:21][CH:22]2[CH2:24][CH2:23]2)[C:7]=1[CH2:25][NH:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:2][CH2:3][CH3:4].[OH-].[Na+].O.Cl>O1CCCC1.CO>[CH2:1]([O:5][C:6]1[C:15]2[C:10](=[CH:11][CH:12]=[C:13]([C:16]([OH:18])=[O:17])[CH:14]=2)[C:9](=[O:20])[N:8]([CH2:21][CH:22]2[CH2:24][CH2:23]2)[C:7]=1[CH2:25][NH:26][C:27]([O:29][C:30]([CH3:31])([CH3:33])[CH3:32])=[O:28])[CH2:2][CH2:3][CH3:4]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 22175886HCID 22175886, compound

Product 1

HCID 22175542HCID 22175542, compoundYield 90.7%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 4-butoxy-3-[[(tert-butoxycarbonyl)amino]methyl]-2-cyclopropylmethyl-1-oxo-1,2-dihydro-6-isoquinolinecarboxylate (2.98 g, 6.5 mmol) in tetrahydrofuran (10 mL) and methanol (10 mL) was added 1N sodium hydroxide (10 mL). The obtained mixture was stirred at room temperature for 2 h. The reaction mixture was poured into water, acidified with 1N hydrochloric acid and extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The obtained crystals were recrystallized from ethyl acetate-diisopropyl ether to give 4-butoxy-3-[[(tert-butoxycarbonyl)amino]methyl]-2-cyclopropylmethyl-1-oxo-1,2-dihydro-6-isoquinolinecarboxylic acid (2.62 g, 90.7%) as crystals.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained crystals were recrystallized from ethyl acetate-diisopropyl ether

Sources & evidence

ORD record
ord-2dcc67a299f34054a5add68a2eb1b97d
Source dataset
uspto-grants-2006_04
Patent number
US07034039B2

Reaction notes

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