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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1287563Generated: October 31, 2026

Ethanol → 10-methyl-2,3-dihydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H,11aH)-dione

https://huagongshe.com/reaction/1287563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantN-Methylisatoic anhydrideHCID 25160—
ReactantL-ProlineHCID 145742—
SolventDimethyl SulfoxideHCID 679—
Product10-methyl-2,3-dihydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H,11aH)-dioneHCID 9859436—

Reaction Steps

The N-methyl isatoic anhydride (I) and L-proline (II) are reacted in a solvent such as ethanol or dimethyl sulfoxide at 25° to 200° C. for a period of 1 to 24 hours to produce the dextrorotatory isomer of the 1,2,3,11a-tetrahydro-10-methyl-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5,11(10H)-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03985732
Source datasetuspto-grants-1976_10
ORD IDord-734de9473da94631982cf5506512a24d
Source noteuspto-grants-1976_10