HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 402878Generated: October 30, 2026
Hydrochloric Acid → 3-(6-Hydroxymethyl-2-methyl-imidazo[1,2-a]pyrazin-3-yl)-4-(1H-indol-3-yl)-pyrrole-2,5-dione
https://huagongshe.com/reaction/402878
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 3-[6-[tert-butylsilyloxy(diphenyl)methyl]-2-methylimidazo[1,2-a]pyrazin-3-yl]-4-(1H-indol-3-yl)pyrrole-2,5-dione | HCID 154090142 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | 3-(6-Hydroxymethyl-2-methyl-imidazo[1,2-a]pyrazin-3-yl)-4-(1H-indol-3-yl)-pyrrole-2,5-dione | HCID 136190664 | 68.3% |
Reaction Steps
Hydrochloric acid (1.0 ml of a 4.0 M solution in dioxane) is added to 3-[6-(tert-butyl-diphenyl-silanyloxymethyl)-2-methyl-imidazo[1,2-a]pyrazin-3-yl]-4-(1H-indol-3-yl)-pyrrole-2,5-dione (60 mg, 0.098 mmol). The reaction mixture is heated to 50° C. for 16 hours under an atmosphere of argon. After cooling, volatiles are removed in vacuo, and the residue is purified by flash chromatography (gradient of CH2Cl2/MeOH 100:0 to 90:10) to afford the title compound (25 mg, 68%). MS (ES+): 374 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08742132B2 |
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| Source dataset | uspto-grants-2014_06 |
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| ORD ID | ord-42e349546c2f42788d3aea2fddfb1eb4 |
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| Source note | uspto-grants-2014_06 |
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