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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-[6-[tert-butylsilyloxy(diphenyl)methyl]-2-methylimidazo[1,2-a]pyrazin-3-yl]-4-(1H-indol-3-yl)pyrrole-2,5-dioneHCID 154090142—
Solvent1,4-DioxaneHCID 31275—
Product3-(6-Hydroxymethyl-2-methyl-imidazo[1,2-a]pyrazin-3-yl)-4-(1H-indol-3-yl)-pyrrole-2,5-dioneHCID 13619066468.3%

Reaction Conditions

Temperature50 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08742132B2
Source datasetuspto-grants-2014_06
ORD IDord-42e349546c2f42788d3aea2fddfb1eb4
Source noteuspto-grants-2014_06