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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1401667Generated: November 1, 2026

8-chloro-2-methyl-1H,2H,3H,4H,5H-pyrido(4,3-b)indole → HCID 59454992, compound

https://huagongshe.com/reaction/1401667

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8-chloro-2-methyl-1H,2H,3H,4H,5H-pyrido(4,3-b)indoleHCID 19615—
ReactantPotassium Phosphate, TribasicHCID 62657—
ReactantL-ProlineHCID 145742—
ReactantHCID 86644776HCID 86644776—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethylformamideHCID 6228—
ProductHCID 59454992HCID 59454992—

Reaction Conditions

Temperature85 °C

Reaction Steps

4-(2-Bromo-1-phenylvinyl)pyridine (310 mg, 1.1 mmol) was dissolved in DMF (5 mL) and potassium phosphate (424 mg, 2 mmol) was added followed by copper (I) iodide (19 mg, 0.1 mmol) and L-proline (23 mg, 0.2 mmol). 8-Chloro-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole (220 mg, 1 mmol) was added and the mixture purged with nitrogen for 2 min. The reaction mixture was stirred at 85° C. overnight. Water was added and the solid mass was filtered under vacuum. The crude compound was purified on silica gel (100-200 mesh) using 0-10% MeOH:DCM as eluent. The compound was further purified through reverse phase HPLC. Yield: 20 mg (TFA salt). 1HNMR (CDCl3, TFA salt) δ (ppm): 8.78 (d, 2H), 7.64 (d, 2H), 7.40-7.28 (m, 5H), 7.10 (m, 2H), 6.92 (d, 2H), 4.65 (m, 1H), 4.0 (m, 1H), 3.60 (m, 1H), 3.05 (m, 1H), 2.84 (s, 3H), 2.76 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08907097B2
Source datasetuspto-grants-2014_12
ORD IDord-a11cf71207004fc4835025d61574b4bb
Source noteuspto-grants-2014_12