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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2230073Generated: November 1, 2026

Pyridine → HCID 70170435, compound

https://huagongshe.com/reaction/2230073

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantMetronidazoleHCID 4173—
Reactant10H-Phenothiazine-10-carbonyl chlorideHCID 87864—
SolventWaterHCID 962—
ProductHCID 70170435HCID 7017043553.28%

Reaction Conditions

Temperature90 °C

Reaction Steps

A reaction mixture of phenothiazine-10-carbonyl chloride (261 mg, 1.0 mmol), metronidazole (165 mg, 0.96 mmol) and pyridine (4 ml) was heated at 90° C. for 4 h. After cooling, water was added. The mixture was filtered. The collected solid was washed with 5% aqueous Na2CO3 and H2O, and then dried. The crude solid was recrystallized from EtOH to give 201 mg (53.28%) 2-methyl-5-nitro-1H-imidazole-1-ethyl phenothiazine-10-carboxylate. m.p.: 198-200° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06423707B1
Source datasetuspto-grants-2002_07
ORD IDord-0388a61a3785405cb85aad20ce09b355
Source noteuspto-grants-2002_07