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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 229723Generated: October 26, 2026

Hydrochloric Acid → 5-(L-alanyl)oxy-7-methyl-3-(3-trifluoromethylphenyl)-5,6,7,8-tetrahydrocinnoline dihydrochloride

https://huagongshe.com/reaction/229723

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-(N-(tert-butoxycarbonyl)-L-alanyl)oxy-7-methyl-3-(3-trifluoromethylphenyl)-5,6,7,8-tetrahydrocinnolineHCID 68844509—
Solvent1,4-DioxaneHCID 31275—
Product5-(L-alanyl)oxy-7-methyl-3-(3-trifluoromethylphenyl)-5,6,7,8-tetrahydrocinnoline dihydrochlorideHCID 68845508—

Reaction Steps

5-(N-(tert-butoxycarbonyl)-L-alanyl)oxy-7-methyl-3-(3-trifluoromethylphenyl)-5,6,7,8-tetrahydrocinnoline obtained in Example 31 was dissolved in dioxane (0.5 mL, followed by adding a 4N HCl solution/dioxane (0.5 mL) under ice cooling and reacting over night. The reaction liquid was concentrated to dryness to obtain an objective compound as white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07563893B2
Source datasetuspto-grants-2009_07
ORD IDord-aba18477e0434b1aa17f303c41655278
Source noteuspto-grants-2009_07