Hydrochloric Acid → HCID 22176086, compound

HRID 1797490Notes

Reaction equation

HRID 1797490 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]([CH3:24])[CH3:23])[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].CO.[OH-].[Na+].Cl>O1CCCC1.O>[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]([CH3:23])[CH3:24])[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]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 22176156HCID 22176156, compound

Product 1

HCID 22176086HCID 22176086, compoundYield 98.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 4-butoxy-3-{{(tert-butoxycarbonyl)amino}methyl}-2-isobutyl-1-oxo-1,2-dihydro-6-isoquinolinecarboxylate (synthesized according to the method similar to that in Example 75 (1)) (1.61 g, 3.5 mmol) in tetrahydrofuran (10 ml) and methanol (10 ml) was added 1N sodium hydroxide (5 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-diethyl ether to give 4-butoxy-3-{{(tert-butoxycarbonyl)amino}methyl}-2-isobutyl-1-oxo-1,2-dihydro-6-isoquinolinecarboxylic acid (1.54 g, 98.7%) 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-diethyl ether

Sources & evidence

ORD record
ord-8c893783dcf94da38f2ddddb9bc19fc9
Source dataset
uspto-grants-2006_04
Patent number
US07034039B2

Reaction notes

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