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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068735Generated: November 4, 2026

Hydrochloric Acid → 1,2-Dihydro-3-methyl-1-[4-(benzamido)butan-1-yl]-1,4,7b-triazacyclopent-[cd]inden-2-one.hydrochloride

https://huagongshe.com/reaction/1068735

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,2-Dihydro-3-methyl-1-[4-(benzamido)butan-1-yl]-1,4,7b-triazacyclopent[cd]inden-2-oneHCID 21190253—
SolventMethanolHCID 887—
Product1,2-Dihydro-3-methyl-1-[4-(benzamido)butan-1-yl]-1,4,7b-triazacyclopent-[cd]inden-2-one.hydrochlorideHCID 7021280385.8%

Reaction Steps

To a solution of 3.06 g (8.78 mmol) of 1,2-dihydro-3-methyl-1-[4-(benzamido)butan-1-yl]-1,4,7b-triazacyclopent[cd]inden-2-one in 50 ml of methanol was added 0.88 ml of conc. HCl, then the solvent was distilled off. The residue was crystallized from methanol-acetone. The crystals were collected by filtration and washed with acetone to give 2.90 g of the object product (85.8%, colorless solid), m.p.173.0-175.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251905B1
Source datasetuspto-grants-2001_06
ORD IDord-49516ef6a0d8499ebf9e2b3d67e17818
Source noteuspto-grants-2001_06