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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 66143Generated: October 31, 2026

Hydrochloric Acid → HCID 22755625, compound

https://huagongshe.com/reaction/66143

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4,7-dihydro-4,7-dioxo-2-ethoxycarbonyl-6-[(2-ethoxy-2-oxoethyl)oxy]-1H-cyclohepta[b]pyridine-1-acetic acid ethyl esterHCID 54323444—
ProductHCID 22755625HCID 22755625—

Reaction Steps

A mixture of 4,7-dihydro-4,7-dioxo-2-ethoxycarbonyl-6-[(2-ethoxy-2-oxoethyl)oxy]-1H-cyclohepta[b]pyridine-1-acetic acid ethyl ester (0.617 g, described in Example 15) and 19% hydrochloric acid (4.2 ml) is refluxed for 1 hr and cooled to room temperature. The precipitate is collected and washed with water, acetone and ether to obtain the title compound, mp > 270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04130649
Source datasetuspto-grants-1978_12
ORD IDord-3e7aff66cd014058a6e40a2d197658b2
Source noteuspto-grants-1978_12