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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2370628Generated: October 25, 2026

Trifluoroacetic acid → Trifluoroacetic acid

https://huagongshe.com/reaction/2370628

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl 2-(4-aminophenyl)pyrrolidine-1-carboxylateHCID 44607625—
Reactant4-(2-Chloro-phenyl)-8-methanesulfinyl-4H-3,4,7,9,9b-pentaaza-cyclopenta[a]naphthalen-5-oneHCID 68194757—
SolventEthyl AcetateHCID 8857—
ProductTrifluoroacetic acidHCID 6422—
Product6-(2-chlorophenyl)-2-{[4-(pyrrolidin-2-yl)phenyl]amino}imidazo[1,2-a]pyrimido[5,4-e]pyrimidin-5(6H)-oneHCID 68195075—

Reaction Conditions

Temperature35 °C

Reaction Steps

A mixture of Example 1E (0.048 g, 0.133 mmol) and tert-butyl 2-(4-aminophenyl)pyrrolidine-1-carboxylate (0.056 g, 0.213 mmol) was heated in a capped vial at 130° C. for 30 minutes. The reaction mixture was treated with ethyl acetate and washed with saturated aqueous NaHCO3. The organic layer was dried over MgSO4, filtered, and concentrated. The residue was dissolved in CH2Cl2 (2 mL) and treated with trifluoroacetic acid (0.103 ml, 1.334 mmol). The mixture was stirred at 35° C. overnight, concentrated, and purified by HPLC (see protocol in Example 1F) to provide the title compound as a trifluoroacetic acid salt. 1H NMR (500 MHz, CD3OD) δ 2.36-2.19 (m, 3H), 2.57-2.47 (m, 1H), 3.53-3.41 (m, 2H), 4.69-4.62 (m, 1H), 7.08 (d, J=1.9 Hz, 1H), 7.62-7.51 (m, 5H), 7.72-7.66 (m, 1H), 7.88 (d, J=1.9 Hz, 1H), 7.97-7.92 (m, 2H), 9.19 (s, 1H). MS (ESI+) m/z 458.2 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08710065B2
Source datasetuspto-grants-2014_04
ORD IDord-75203152707547a486326d6a5da891be
Source noteuspto-grants-2014_04