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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1063246Generated: October 30, 2026

Hydrochloric Acid → HCID 86759900, compound

https://huagongshe.com/reaction/1063246

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 numberUS06964970B2
Source datasetuspto-grants-2005_11
ORD IDord-7818c56575d840d0bbf966f19d1a0453
Source noteuspto-grants-2005_11