Hydrochloric Acid → HCID 22176135, compound

HRID 1797721Notes

Reaction equation

HRID 1797721 reaction equation
[C:1]([O:5][C:6]([NH:8][CH2:9][C:10]1[N:11]([CH2:30][CH:31]([CH3:33])[CH3:32])[C:12](=[O:29])[C:13]2[C:18]([C:19]=1[C:20]1[S:21][CH:22]=[CH:23][CH:24]=1)=[CH:17][C:16]([C:25]([O:27]C)=[O:26])=[CH:15][CH:14]=2)=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH-].[Na+].O.Cl>O1CCCC1.CO>[C:1]([O:5][C:6]([NH:8][CH2:9][C:10]1[N:11]([CH2:30][CH:31]([CH3:33])[CH3:32])[C:12](=[O:29])[C:13]2[C:18]([C:19]=1[C:20]1[S:21][CH:22]=[CH:23][CH:24]=1)=[CH:17][C:16]([C:25]([OH:27])=[O:26])=[CH:15][CH:14]=2)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 22175915HCID 22175915, compound

Product 1

HCID 22176135HCID 22176135, compoundYield 96.3%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 3-{[(tert-butoxycarbonyl)amino]methyl}-2-isobutyl-1-oxo-4-(2-thienyl)-1,2-dihydro-6-isoquinolinecarboxylate (0.85 g, 1.8 mmol) in tetrahydrofuran (10 ml) and methanol (10 ml) was added 1N sodium hydroxide solution (4 ml). The resulting mixture was stirred at room temperature for 1 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 resulting crystals were recrystallized from tetrahydrofuran-diisopropyl ether to give 3-{[(tert-butoxycarbonyl)amino]methyl}-2-isobutyl-1-oxo-4-(2-thienyl)-1,2-dihydro-6-isoquinolinecarboxylic acid (0.79 g, 96.3%) 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 resulting crystals were recrystallized from tetrahydrofuran-diisopropyl ether

Sources & evidence

ORD record
ord-5db20832e2c142e9909c84da4e75d4d3
Source dataset
uspto-grants-2006_04
Patent number
US07034039B2

Reaction notes

Loading…