5-Aminovaleric acid → 5-[(4-Hydroxy-7-phenylamino-isoquinoline-3-carbonyl)-amino]-pentanoic acid
Reaktionsgleichung
[OH:1][C:2]1[C:11]2[C:6](=[CH:7][C:8]([NH:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)=[CH:9][CH:10]=2)[CH:5]=[N:4][C:3]=1[C:19](OC)=[O:20].[NH2:23][CH2:24][CH2:25][CH2:26][CH2:27][C:28]([OH:30])=[O:29].C[O-].[Na+].CO>>[OH:1][C:2]1[C:11]2[C:6](=[CH:7][C:8]([NH:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)=[CH:9][CH:10]=2)[CH:5]=[N:4][C:3]=1[C:19]([NH:23][CH2:24][CH2:25][CH2:26][CH2:27][C:28]([OH:30])=[O:29])=[O:20]Komponenten
5
Versuchsvorschrift
A mixture of methyl 4-hydroxy-7-(phenylamino)isoquinoline-3-carboxylate (30.0 mg, 0.09 mmol), 5-aminovaleric acid (216.3 mg, 1.9 mmol, Sigma-Aldrich) and NaOMe in MeOH (2.8 mL, 1.4 mmol, 0.5 M solution, Sigma-Aldrich) was heated to reflux for 20 hours before cooling to room temperature. The solvent was removed in vacuo and the residue was dissolved in H2O (10 mL) and EtOAc (10 mL). To the stirred mixture was added 1 N hydrochloric acid until pH was 1. The layers were separated and the aqueous layer was extracted twice with EtOAc. The combined organic layers were dried over MgSO4, concentrated, and purified by flash chromatography (0-30% MeOH/CH2Cl2) to give the title compound in 27 mg. MS: (+) m/z 380.11 (M+1).
Aufarbeitung
- temperaturewas heated
- temperatureto reflux for 20 hours
- customThe solvent was removed in vacuo
- dissolutionthe residue was dissolved in H2O (10 mL)
- additionTo the stirred mixture was added 1 N hydrochloric acid until pH was 1
- customThe layers were separated
- extractionthe aqueous layer was extracted twice with EtOAc
- dry with materialThe combined organic layers were dried over MgSO4
- concentrationconcentrated
- custompurified by flash chromatography (0-30% MeOH/CH2Cl2)
Quellen und Nachweise
- ORD-Eintrag
- ord-f82d885a09dd475dae0ae60199e267c3
- Quelldatensatz
- uspto-grants-2016_08
- Patentnummer
- US09409892B2
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