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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1498430Generated: October 28, 2026

Hydrochloric Acid → HCID 67050777, compound

https://huagongshe.com/reaction/1498430

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 58204357HCID 58204357—
CatalystPalladiumHCID 23938—
ProductHCID 67050777HCID 67050777110%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 4-{2-[(2-hydroxy-ethyl)-isopropyl-carbamoyl]-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl}-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (112 mg, 0.23 mmol) in IMS (3 mL) was added hydrochloric acid (2 mL, 2M, 4.0 mmol) and palladium on carbon (20 mg, 10% by wt) added. The reaction mixture was stirred under an atmosphere of hydrogen at 50° C. for 4.5 h. The reaction mixture was filtered and the solids washed with IMS (10 mL). The filtrate was concentrated in vacuo and azeotroped with acetonitrile to yield 8-piperidin-4-yl-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene-2-carboxylic acid (2-hydroxy-ethyl)-isopropyl-amide hydrochloride as a thick oil (110 mg). LCMS: RT=0.32 min, [M+H]+=399

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09198918B2
Source datasetuspto-grants-2015_12
ORD IDord-b65ab345fa0042129e2c098d2d07d790
Source noteuspto-grants-2015_12