Ethanol → Orotic acid, monosodium salt
Reaction equation
[C:1]([OH:11])(=[O:10])[C:2]1[NH:9][C:7](=[O:8])[NH:6][C:4](=[O:5])[CH:3]=1.[OH-].[Na+:13].CCO>O>[C:1]([O-:11])(=[O:10])[C:2]1[NH:9][C:7](=[O:8])[NH:6][C:4](=[O:5])[CH:3]=1.[Na+:13]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
FIG. 2 illustrates the synthesis of Sodium Methotrexate Orotate. Orotic acid (1.74 g) was treated with sodium hydroxide (0.45 g) in water (100 mL). The mixture was warmed, stirred for 1 h and stored in the refrigerator overnight. Etanol (30 mL) was added to the solution and the precipitate was collected by filtration to give sodium orotate as a colorless solid which was dried in vacuum over night and used for the next step (1.51 g).
Workup
- temperatureThe mixture was warmed
- customstored in the refrigerator overnight
- filtrationthe precipitate was collected by filtration
Sources & evidence
- ORD record
- ord-98fb44b0ddfc4c75b65d7aa33f16be3c
- Source dataset
- uspto-grants-2009_10
- Patent number
- US07601834B2
Reaction notes
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