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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1266836Generated: November 4, 2026

Stannous chloride dihydrate → 3-(8-Iodo-4-oxo-7-pyrrol-1-yl-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)-benzonitrile

https://huagongshe.com/reaction/1266836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStannous chloride dihydrateHCID 61436—
Reactant3-(3-Cyano-phenyl)-N-(4-iodo-2-nitro-5-pyrrol-1-yl-phenyl)-3-oxo-propionamideHCID 18548809—
SolventEthanolHCID 702—
Product3-(8-Iodo-4-oxo-7-pyrrol-1-yl-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)-benzonitrileHCID 18548791—

Reaction Steps

The title compound was prepared from 3-(3-cyano-phenyl)-N-(4-iodo-2-nitro-5-pyrrol-1-yl-phenyl)-3-oxo-propionamide (Example M9) by reductive cyclization with SnCl2.2H2O in EtOH at 70° C. according to the general procedure J (method b). Obtained as a yellow solid (344 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06548495B2
Source datasetuspto-grants-2003_04
ORD IDord-c48f3a4678a44d9eab96be993c3d98b2
Source noteuspto-grants-2003_04