HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1458753Generated: November 2, 2026
Dimethyl Sulfoxide → HCID 67586737, compound
https://huagongshe.com/reaction/1458753
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethyl Sulfoxide | HCID 679 | — |
| Reactant | Methanesulfonic Acid | HCID 6395 | — |
| Reactant | (+-)-1-Aminoindan | HCID 123445 | — |
| Reactant | 1-ethyl-4-chloro-1H-pyrazolo[3,4-b]quinoline | HCID 15816908 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 67586737 | HCID 67586737 | 50.8% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05852035 |
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| Source dataset | uspto-grants-1998_12 |
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| ORD ID | ord-3a76cf3e791a4cd8913766dce52c4268 |
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| Source note | uspto-grants-1998_12 |
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