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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 53886Generated: October 29, 2026

Hydrochloric Acid → 7-(1-Aminomethyl-2-oxa-7-azabicyclo[3.3.0]oct-7-yl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid hydrochloride

https://huagongshe.com/reaction/53886

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant7-(1-Tert-butoxycarbonylaminomethyl-2-oxa-7-azabicyclo[3.3.0]oct-7-yl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acidHCID 19960965—
Product7-(1-Aminomethyl-2-oxa-7-azabicyclo[3.3.0]oct-7-yl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid hydrochlorideHCID 67726873—

Reaction Steps

In an analogous manner to Example 1B, the product from step A is reacted with half-concentrated hydrochloric acid to give 7-(1-aminomethyl-2-oxa-7-azabicyclo[3.3.0]oct-7-yl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid hydrochloride with a melting point of 218°-223° C. (with decomposition).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05621105
Source datasetuspto-grants-1997_04
ORD IDord-642fa609e641407b934f22d468fd95ba
Source noteuspto-grants-1997_04