Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 886116Generated: October 30, 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/886116

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 numberUS08242104B2
Source datasetuspto-grants-2012_08
ORD IDord-ab55a3b6d08042239ff96c1ddf612c8e
Source noteuspto-grants-2012_08