Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 440498Generated: October 30, 2026

Hydrochloric Acid → HCID 22406853, compound

https://huagongshe.com/reaction/440498

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantOxalic AcidHCID 971—
ReactantHCID 22406802HCID 22406802—
ProductHCID 22406853HCID 22406853—

Reaction Steps

A mixture of 7-benzyloxy-6-methoxy-2-methyl-1-[1-(4-trifluoromethoxyphenyl)cyclobutyl]-1,2,3,4-tetrahydroisoquinoline hydrochloride (2.94 g), industrial methylated spirits (65 ml) and concentrated hydrochloric acid (65 ml) was heated under reflux for 45 minutes. The mixture was concentrated, and dried by azeotropic distillation with propan-2-ol. The residue was dissolved in ether and treated with one equivalent of oxalic acid to yield 7-hydroxy-6-methoxy-2-methyl-1-[1-(4-trifluoromethoxyphenyl)cyclobutyl]-1,2,3,4-tetrahydroisoquinoline oxalate which was crystallised from acetonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05519034
Source datasetuspto-grants-1996_05
ORD IDord-ba6fabd62d4f4ab6ba267ad0239da09d
Source noteuspto-grants-1996_05