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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1616220Generated: November 1, 2026

Pyrrolidine → HCID 86691830, compound

https://huagongshe.com/reaction/1616220

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 86691831HCID 86691831—
SolventMethanolHCID 887—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 86691830HCID 86691830—

Reaction Conditions

Temperature65 °C

Reaction Steps

To a microwave vial, 4-cyano-3-[1-(2,2-dimethylpropyl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-5-yl]benzyl methanesulfonate (21-1) (20 mg, 0.05 mmol) and pyrrolidine (5 mg, 0.07 mmol) were added and dissolved in NMP (0.25 ml). Diisopropyl ethyl amine (18 mg, 0.14 mmol) was then added and the reaction was heated at 65° C. allowed to stir for 4 hours. The mixture was diluted with methanol and purified using reverse phase chromatography (10-100%, 0.1% TFA in H2O/Acetonitrile); the desired fractions were collected and concentrated to produce 2-[1-(2,2-dimethylpropyl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-5-yl]-4-(pyrrolidin-1-ylmethyl)benzonitrile (13-2). HRMS (M+H)+: observed=404.2456, calculated=404.2445. 1H NMR (400 MHz, CD3 OD): δ 7.91 (s, 1H); 7.83 (d, J=7.9 Hz, 1H); 7.60 (q, J=8.3 Hz, 2H); 7.54 (d, J=8.0 Hz, 1H); 3.82 (s, 2H); 3.77 (s, 2H); 3.55 (s, 3H); 2.64 (m, 4H); 1.85 (m, 4H); 1.06 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765784B2
Source datasetuspto-grants-2014_07
ORD IDord-70c042b4a99a4a43bde855a62f94ce52
Source noteuspto-grants-2014_07