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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1773249Generated: October 30, 2026

N-methyl-2-pyrrolidone → HCID 49779908, compound

https://huagongshe.com/reaction/1773249

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantPotassium HydroxideHCID 14797—
Reactant1H-Pyrido[4,3-b]indole, 2,3,4,5-tetrahydro-2,8-dimethyl-HCID 209291—
ReactantHCID 66612243HCID 66612243—
SolventWaterHCID 962—
ProductHCID 49779908HCID 4977990844.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

2,8-Dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (100 mg, 0.005 mol) was taken into NMP (3 mL), and to it was added finely crushed KOH (280 mg, 0.005 mol) and 2-(3-(5-vinylpyridin-2-yl)propyl)isoindoline-1,3-dione (146 mg, 0.005 mol). The reaction was heated at 120° C. for 12 h. The reaction was monitored by LCMS. After 12 h, 2 mL of water was added to the reaction mixture and heated at 120° C. for 12 h. The reaction was monitored by LCMS. After completion of reaction the mixture was cooled and water was added, followed by extraction with EtOAc. The organic extract was dried over sodium sulfate and concentrated under vacuum to yield 800 mg of crude product. 1HNMR (CDCl3, Oxalate salt) d (ppm): 8.17 (s, 1H), 7.22 (s, 1H), 1.18 (d, 1H), 7.15 (d, 1H), 6.95 (m, 2H), 4.20 (t, 2H), 3.70 (s, 2H), 3.0 (t, 2H), 2.90 (t, 2H), 2.80 (t, 2H), 2.70 (t, 2H), 2.58 (s, 3H), 2.40 (s, 3H), 2.37 (m, 2H), 1.80 (t, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09255094B2
Source datasetuspto-grants-2016_02
ORD IDord-50f7462b07e54ba682cf1f6ac818274f
Source noteuspto-grants-2016_02