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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1368111Generated: November 1, 2026

Hydrochloric Acid → HCID 86759900, compound

https://huagongshe.com/reaction/1368111

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 22278940HCID 22278940—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 86759900HCID 8675990090%

Reaction Steps

To a solution of 2-benzyloxycarbonyl-9-{[4-(carboxymethyl)phenyl]methyl}-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole (6.91 g, 15.22 mmole) in methanol (50 mL), dioxane (50 mL) and HCl (19 mL, 1M in dioxane) at RT in a Parr hydrogenation flask was added 10% Pd/C (0.5 g). The reaction mixture was shaken under 45 psi of H2 for 6 hr. The suspension was filtered through celite®, and the filter pad was washed with methanol. The filtrate was concentrated on the rotavap, and the residue was dried under high vacuum to afford the titled compound (5.22 g, 90%) as a white solid: MS (ES) m/e 345 (M+H−HCl)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06573272B1
Source datasetuspto-grants-2003_06
ORD IDord-b09fd68587424eada219882f1797dc4b
Source noteuspto-grants-2003_06