Hydrochloric Acid → (s)-1-(2-Hydroxyethyl)-3-(5-chloroindole-2-carbonylamino)-3,4-dihydrocarbostyril

HRID 11582

Reaktionsgleichung

[C:1]([CH2:4][N:5]1[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[CH2:9][C@H:8]([NH:16][C:17]([C:19]2[NH:20][C:21]3[C:26]([CH:27]=2)=[CH:25][C:24]([Cl:28])=[CH:23][CH:22]=3)=[O:18])[C:6]1=[O:7])(O)=[O:2].Cl.C(OCC)(=O)C>B.O1CCCC1>[OH:2][CH2:1][CH2:4][N:5]1[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[CH2:9][C@H:8]([NH:16][C:17]([C:19]2[NH:20][C:21]3[C:26]([CH:27]=2)=[CH:25][C:24]([Cl:28])=[CH:23][CH:22]=3)=[O:18])[C:6]1=[O:7]

Komponenten

Reaktionsbedingungen

Temperatur: 35 °C

Versuchsvorschrift

A mixture of (S)-1-carboxymethyl-3-(5-chloroindole-2-carbonylamino)-3,4-dihydrocarbostyril (Example 10) (6 mg) in 1.0 M borane in tetrahydrofuran solution (2 mL) under argon was stirred at 35° C. for 3 h. After cooling to room temperature, 1.0 M aqueous hydrochloric acid (10 mL) and ethyl acetate (10 mL) were added. This mixture was stirred for 3 h before the layers were separated. The organic phase was washed with water (10 mL three times) and evaporated under vacuum. The residue was chromatographed on reverse phase preparative HPLC to isolate the title compound (1.1 mg) and the over-reduction product (S)-1-(2-hydroxyethyl)-3-(5-chloroindole-2-carbonylamino)-1,2,3,4-tetrahydroquinoline (0.9 mg). Title compound HPLC/MS [M+H]+, 384.

Aufarbeitung

temperatureAfter cooling to room temperature
stirringThis mixture was stirred for 3 h before the layers
customwere separated
washThe organic phase was washed with water (10 mL three times)
customevaporated under vacuum
customThe residue was chromatographed on reverse phase preparative HPLC

Quellen und Nachweise

ORD-Eintrag: ord-53c7f65f8f8a484284f4f588533f0f5f
Quelldatensatz: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07098235B2

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