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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 659643Generated: October 29, 2026

Hydrochloric Acid → HCID 67996164, compound

https://huagongshe.com/reaction/659643

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 67996554HCID 67996554—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67996164HCID 6799616498%

Reaction Steps

A 50-mL round-bottom flask was charged with tert-butyl 1-((9-(3-(dimethylamino)propyl)-9H-carbazol-3-yl)methyl)piperidin-3-ylcarbamate (200 mg, 0.43 mmol, 1.00 equiv) and conc. HCl (1 mL) in 1,4-dioxane (3 mL). The resulting mixture was stirred at room temperature for 1 hour. Upon completion, the resulting mixture was concentrated on a rotary evaporator to give the crude that was re-crystallized from 1:1 CH3OH/ether affording 1-((9-(3-(dimethylamino)propyl)-9H-carbazol-3-yl)methyl)piperidin-3-amine dihydrochloride yellow solid (0.2 g, 98%). LCMS: [M+H]+: 365. 1H NMR (D2O, 300 MHz) δ 8.08-8.05 (m, 2H), 7.53-7.44 (m, 4H), 7.28-7.23 (m, 1H), 4.47 (br, 2H), 4.31 (t, 2H), 3.73 (br, 1H), 3.55-3.47 (m, 2H), 3.06-2.90 (m, 4H), 2.64 (s, 6H), 2.22-2.13 (m, 3H), 2.05-2.00 (m, 1H), 1.67-1.54 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08080566B1
Source datasetuspto-grants-2011_12
ORD IDord-17c52a92f3584b15a3f729d01ecb0bfd
Source noteuspto-grants-2011_12