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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1498173Generated: November 1, 2026

Hydrochloric Acid → 2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-8-piperidin-4-yl-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulene hydrochloride

https://huagongshe.com/reaction/1498173

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-[2(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-piperidine-1-carboxylic acid tert-butyl esterHCID 58204522—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
Product2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-8-piperidin-4-yl-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulene hydrochlorideHCID 67050623100%

Reaction Steps

A solution of 4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-piperidine-1-carboxylic acid tert-butyl ester (58 mg, 0.12 mmol) in DCM (0.5 mL) and methanol (0.3 mL) was treated with 4M HCl in dioxane (0.8 mL) and the reaction mixture stirred at RT for 1.5 h before being concentrated in vacuo. The resultant residue was triturated with diethyl ether to give 2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-8-piperidin-4-yl-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulene hydrochloride (66 mg, 100%). LCMS RT=1.68 min, [M+H]+=380

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09198918B2
Source datasetuspto-grants-2015_12
ORD IDord-ee6ed1d5273b46529585d3cfd0a57365
Source noteuspto-grants-2015_12