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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1742585Generated: October 31, 2026

HCID 19006947, compound → HCID 15222896, compound

https://huagongshe.com/reaction/1742585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 19006947HCID 19006947—
SolventHydrochloric AcidHCID 313—
ProductHCID 15222896HCID 15222896—

Reaction Steps

A suspension of 2-ethyl 7-methyl 10-oxo-10H-pyridazino[6,1-b]quinazoline-2,7-dicarboxylate (Example 3, Step A) in 10% hydrochloric acid was refluxed under nitrogen for 12 h. The mixture was cooled and filtered to give the titled compound as a yellow solid, mp>360° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05340808
Source datasetuspto-grants-1994_08
ORD IDord-c9b7400743d14187a671518637859fed
Source noteuspto-grants-1994_08