Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980657Generated: October 30, 2026

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid → 1-Ethyl--6-fluoro-1,4-dihydro-7-(7-ethyl-2,7-diazaspiro[4.4]non-2-yl)-4-oxo-1,8-naphthyridine-3-carboxylic acid

https://huagongshe.com/reaction/980657

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acidHCID 12790859—
Reactant2-Ethyl-2,7-diazaspiro[4.4]nonane dihydrochlorideHCID 13491811—
Product1-Ethyl--6-fluoro-1,4-dihydro-7-(7-ethyl-2,7-diazaspiro[4.4]non-2-yl)-4-oxo-1,8-naphthyridine-3-carboxylic acidHCID 13772745—

Reaction Steps

The title compound was prepared according to example 24 by reacting 1-ethyl-6-fluoro-7-chloro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid with 2-ethyl-2,7diazaspiro[4.4]nonane dihydrochloride; mp 215°-217° C. (dec).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04638067
Source datasetuspto-grants-1987_01
ORD IDord-1e0883e4d832464f8c35bcadde262b8e
Source noteuspto-grants-1987_01