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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1350486Generated: October 25, 2026

Diisopropylethylamine → (S)-9-Fluoro-5-[3-phenethyl-piperazine-1-yl]-11H-12-thia-6,11-diaza-dibenzo[a,f]azulene

https://huagongshe.com/reaction/1350486

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant12-Amino-8-fluoro-6H-[1]benzothieno[2,3-b][1,5]benzodiazepine hydrochlorideHCID 18422384—
Reactant(S)-2-PhenethylpiperazineHCID 44828673—
SolventDimethyl SulfoxideHCID 679—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
Product(S)-9-Fluoro-5-[3-phenethyl-piperazine-1-yl]-11H-12-thia-6,11-diaza-dibenzo[a,f]azuleneHCID 2488777433.3%

Reaction Conditions

Temperature115 °C

Reaction Steps

Combine 9-fluoro-11H-12-thia-6,11-diaza-dibenzo[a,f]azulen-5-ylamine hydrogen chloride (287 mg, 0.9 mmol), (S)-2-phenethyl-piperazine (340 mg, 1.80 mmol) and diisopropylethyl amine (116 mg, 0.9 mmol) in DMSO (0.5 mL) and toluene (2.0 mL), stir and microwave (300 W, 125 ° C.) for 8 h, then heat to 115 ° C. for 22 h. Cool the reaction to RT, dilute with CH2Cl2, wash with H2O and brine. Dry the organic layer with by Na2SO4. The crude material purify by chromatography on silica gel, gradient (100% CH2Cl2 to 100% CH2Cl2:2N NH3/MeOH=25:1), give 137 mg of title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07214673B2
Source datasetuspto-grants-2007_05
ORD IDord-8d1e6ef4da8247849abf56d6c85f1e8f
Source noteuspto-grants-2007_05