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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1458753Generated: November 2, 2026

Dimethyl Sulfoxide → HCID 67586737, compound

https://huagongshe.com/reaction/1458753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
ReactantMethanesulfonic AcidHCID 6395—
Reactant(+-)-1-AminoindanHCID 123445—
Reactant1-ethyl-4-chloro-1H-pyrazolo[3,4-b]quinolineHCID 15816908—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 67586737HCID 6758673750.8%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 1-ethyl-4-chloro-1H-pyrazolo[3,4-b]quinoline (1.0 g, 0.0043 mol), DMSO (3 ml) and 1-aminoindane (1 g) is heated at 110° C. for 16 hours. The reaction mixture is cooled, and then is poured into water (100 ml). The solid that forms is collected by filtration and dried to afford the product as the free base. The free base is dissolved in methanol and then is treated with methanesulfonic acid. The methanol is evaporated, and the residue is crystallized from hot methanol/2-propanol and then is recrystallized from hot methanol/2-propanol to afford 717 mg of 1-ethyl-N-(1-indanyl)-1H-pyrazolo[3,4-b]quinolin-4-amine.CH3SO3H, m.p. 233°-235° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05852035
Source datasetuspto-grants-1998_12
ORD IDord-3a76cf3e791a4cd8913766dce52c4268
Source noteuspto-grants-1998_12