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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1642540Generated: November 1, 2026

Einecs 211-027-4 → 5-Amino-3-methyl-9H-pyrido[2,3-b]indole-7-carbonitrile

https://huagongshe.com/reaction/1642540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEinecs 211-027-4HCID 69401—
Reactant3,5-Diamino-4-(2-fluoro-5-methyl-pyridin-3-yl)-benzonitrileHCID 58880056—
Solvent1,4-DioxaneHCID 31275—
Product5-Amino-3-methyl-9H-pyrido[2,3-b]indole-7-carbonitrileHCID 1612431187%

Reaction Conditions

Temperature180 °C

Reaction Steps

Compound 123 (148 mg, 0.61 mmol) was dissolved in dioxane (2 mL) with pyridinium chloride (80 mg), and the solution was heated at 180° C. in the microwave for 15 minutes. The solution was concentrated in vacuo. Purification by flash chromatography (20% acetone/CH2Cl2) gave 118 mg (87%) of the title compound as an off-white solid. MS (ES) [m+H] calc'd for C13H10N4, 223; found 223.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08119655B2
Source datasetuspto-grants-2012_02
ORD IDord-2ce6133bc03f49c5a63b0fbe41f72d8b
Source noteuspto-grants-2012_02