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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497972Generated: October 27, 2026

2-Chloro-6-ethoxypyridine → 4-Chloro-3,8-dimethyl-1-(6-ethoxy-2-pyridinyl)-1H-pyrazolo[3,4-b]quinoline

https://huagongshe.com/reaction/497972

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-6-ethoxypyridineHCID 98563—
Reactant8-methyl-2-(2-oxopropyl)-4H-3,1-benzoxazin-4-oneHCID 22320304—
Reactant6-Ethoxy-2-hydrazinopyridineHCID 22320339—
Product4-Chloro-3,8-dimethyl-1-(6-ethoxy-2-pyridinyl)-1H-pyrazolo[3,4-b]quinolineHCID 22320216—

Reaction Steps

Following the procedures described in Reference Example 1-10 and Example 1-34, the title compound was prepared from 8-methyl-2-(2-oxopropyl)-4H-3,1-benzoxazin-4-one and 6-ethoxy-2-hydrazinopyridine which was separately prepared from 2-chloro-6-ethoxypyridine following the method described in Reference Example 1-9 (62% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949648B2
Source datasetuspto-grants-2005_09
ORD IDord-c77e31a31bb247c5b7e0952b3dfaa044
Source noteuspto-grants-2005_09