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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11304Generated: October 30, 2026

Hydrochloric Acid → 1-Cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-7-(4'-(L)-alaninylamino-3', 3'-dimethylpiperidin-1-yl)-4-oxo-quinoline-3-carboxylic acid hydrochloride

https://huagongshe.com/reaction/11304

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-Cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-7-{4'-(N-t-butoxycarbonyl-L-alanyl)amino-3',3'-dimethylpiperidin-1-yl}-4-oxo-quinoline-3-carboxylic acidHCID 86586476—
Product1-Cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-7-(4'-(L)-alaninylamino-3', 3'-dimethylpiperidin-1-yl)-4-oxo-quinoline-3-carboxylic acid hydrochlorideHCID 8658647475%

Reaction Steps

1-Cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-7-{4′-(N-t-butoxycarbonyl-L-alanyl)amino-3′,3′-dimethylpiperidin-1-yl}-4-oxo-quinoline-3-carboxylic acid (0.9 gm) is hydrolysed with 6N HCl (20 ml) at room temperature for 1 hr. The mixture concentrated to furnish the titled product. Yield 75%, m.p 245–50° C., C24H31FN4O5.HCl m/z 475 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07098219B2
Source datasetuspto-grants-2006_08
ORD IDord-3157bbbc971143d2a53b3dc4daf97f21
Source noteuspto-grants-2006_08