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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1400549Generated: October 28, 2026

Potassium Phosphate, Tribasic → HCID 59454961, compound

https://huagongshe.com/reaction/1400549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Phosphate, TribasicHCID 62657—
ReactantL-ProlineHCID 145742—
Reactant1H-Pyrido[4,3-b]indole, 2,3,4,5-tetrahydro-2,8-dimethyl-HCID 209291—
ReactantHCID 86644768HCID 86644768—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethylformamideHCID 6228—
ProductHCID 59454961HCID 59454961—

Reaction Conditions

Temperature85 °C

Reaction Steps

4-(3-Bromobut-2-en-2-yl)pyridine (127 mg, 0.59 mmol) was dissolved in DMF (5 mL) and potassium phosphate (212 mg, 1 mmol) was added followed by copper (I) iodide (9.5 mg, 0.05 mmol) and L-proline (11.5 mg, 0.1 mmol). 2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole (100 mg, 0.5 mmol) was added and nitrogen gas purged for 2 min. The reaction mixture was stirred at 85° C. overnight. Water was added and the reaction mixture filtered to obtain the solid mass under vacuum. The crude product was purified on silica gel (100-200 mesh) using 0-10% MeOH:DCM as eluent. The compound was further purified through reverse phase chromatography. Yield: 5 mg (TFA salt). 1H NMR (CD3OD, free base) δ (ppm): 8.60 (d, 2H), 7.50 (d, 2H), 7.24 (s, 1H), 7.12 (d, 1H), 6.99 (d, 1H), 3.78 (s, 2H), 2.98 (m, 2H), 2.90 (m, 2H), 2.60 (s, 3H), 2.42 (s, 3H), 1.92 (s, 3H), 1.66 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906925B2
Source datasetuspto-grants-2014_12
ORD IDord-a73f6c5fe2ca43c2bd08d6bb9b599c38
Source noteuspto-grants-2014_12