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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1401695Generated: November 2, 2026

Methylamine → 5-((4-fluorophenyl)ethynyl)-N,2-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxamide

https://huagongshe.com/reaction/1401695

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantTetrahydrofuranHCID 8028—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant5-((4-fluorophenyl)ethynyl)-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxylic acidHCID 59455120—
SolventDimethylformamideHCID 6228—
Product5-((4-fluorophenyl)ethynyl)-N,2-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxamideHCID 59455116—

Reaction Steps

5-(4-Fluoro-phenylethynyl)-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxylic acid (20 mg, 0.0044 mmol) was dissolved in DMF and EDCI.HCl (42.17 mg, 0.22 mmol) was added. Methyl amine (2.0 M) in THF (0.0446 mL, 0.0089 mmol) was added. The reaction mixture was stirred at RT overnight. The progress of reaction was monitored by TLC and LCMS. The DMF was evaporated under vacuum and the product purified by HPLC. 1H NMR (CD3OD, TFA salt) δ (ppm): 8.05 (s, 1H), 7.82 (d, 1H), 7.62 (m, 3H), 7.20 (t, 2H), 4.40 (m, 1H), 3.70 (m, 1H), 3.38 (m, 4H), 3.20 (s, 3H), 2.90 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08907097B2
Source datasetuspto-grants-2014_12
ORD IDord-9e6f92c2cc3140a4846846d258b8641f
Source noteuspto-grants-2014_12