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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 649941Generated: October 29, 2026

Anisole → 3-bromo-8-fluoro-12-(4-methylpiperazin-1-yl)-6H-[1]benzothieno[2,3-b][1,5]benzodiazepine

https://huagongshe.com/reaction/649941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnisoleHCID 7519—
Reactant1-MethylpiperazineHCID 53167—
ReactantEthyl 6-bromo-2-(2-amino-5-fluoroanilino)benzo[b]thiophene-3-carboxylateHCID 18422173—
CatalystTitanium TetrachlorideHCID 24193—
Product3-bromo-8-fluoro-12-(4-methylpiperazin-1-yl)-6H-[1]benzothieno[2,3-b][1,5]benzodiazepineHCID 18422348—

Reaction Steps

In the same manner as in Example 1 and using ethyl 6-bromo-2-(2-amino-5-fluoroanilino)benzo[b]thiophene-3-carboxylate (3.8 g), 1-methylpiperazine (16 ml), anisole (85 ml) and titanium tetrachloride (3.0 ml), 3-bromo-8-fluoro-12-(4-methylpiperazin-1-yl)-6H-[1]benzothieno[2,3-b][1,5]benzodiazepine (1.16 g) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06271225B1
Source datasetuspto-grants-2001_08
ORD IDord-7d1acb9f7400416c9c9f6e763beb667f
Source noteuspto-grants-2001_08