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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1400368Generated: November 1, 2026

Trifluoroacetic acid → HCID 57876047, compound

https://huagongshe.com/reaction/1400368

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantSodium hydrideHCID 24758—
Reactant2-(4-Methylphenyl)oxiraneHCID 108111—
Reactant2-Ethyl-2,3,4,5-tetrahydro-1H-pyrido(4,3-b)indoleHCID 588824—
SolventDimethylformamideHCID 6228—
ProductHCID 57876047HCID 5787604717.9%

Reaction Steps

2-Ethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (400 mg, 2.0 mmol), 4-methylstyrene oxide (2.01 g, 15 mmol) and NaH (240 mg, 6 mmol) were heated in DMF (6 mL) at 120° C. for 16 h to obtain 120 mg of racemic-2-(2-ethyl-1,2,3,4-tetrahydropyrido[4,3-b]indol-5-yl)-1-p-tolylethanol as a TFA salt after purification by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, Gradient: 10% B to 80% B in 30 min., injection vol. 5 mL). 1H NMR (CDCl3, TFA salt) δ (ppm): 13.40-13.10 (bs, 1H), 7.40-7.30 (t, 2H), 7.29-7.10 (m, 6H), 5.07-4.95 (m, 1H), 4.75-4.60 (t, 1H), 4.25-4.02 (m, 3H), 3.75-3.65 (m, 1H), 3.40-3.0 (m, 5H), 2.35 (S, 3H), 1.47-1.40 (t, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906925B2
Source datasetuspto-grants-2014_12
ORD IDord-265a9537011d4bd1919e6c52f6f8f74f
Source noteuspto-grants-2014_12