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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 708641Generated: October 29, 2026

Hydrochloric Acid → HCID 66719276, compound

https://huagongshe.com/reaction/708641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantL-7-Hydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acidHCID 2733173—
ProductHCID 66719276HCID 66719276—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of (S)-7-hydroxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid (19.3 g) in 100 mL MeOH was added hydrochloric acid (100 mL, 4M solution in dioxane) at room temperature and the reaction mixture was heated to reflux and stirred at 70° C. for 16 hours. After completion of the reaction, the reaction mixture was concentrated in vacuo to give (S)-7-hydroxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester hydrochloride salt. The product was used in a subsequent step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09175003B2
Source datasetuspto-grants-2015_11
ORD IDord-b68b71573309444fb696ee8c1034f148
Source noteuspto-grants-2015_11