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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494095Generated: October 30, 2026

10-(Benzyloxy)-2-(4-fluorobenzyl)-4,8-dimethyl-7,8-dihydropyrazino-[1',2':1,5]pyrrolo-[2,3-d]pyridazine-1,9(2H,6H)-dione → 2-(4-Fluorobenzyl)-10-hydroxy-4,8-dimethyl-7,8-dihydropyrazino-[1',2':1,5]pyrrolo[2,3-d]pyridazine-1,9(2H,6H)-dione

https://huagongshe.com/reaction/494095

Reaction equation

Participants

RoleNameHCIDCharge
Reactant10-(Benzyloxy)-2-(4-fluorobenzyl)-4,8-dimethyl-7,8-dihydropyrazino-[1',2':1,5]pyrrolo-[2,3-d]pyridazine-1,9(2H,6H)-dioneHCID 68863629—
CatalystPalladium hydroxideHCID 9942167—
SolventEthanolHCID 702—
SolventAcetonitrileHCID 6342—
Product2-(4-Fluorobenzyl)-10-hydroxy-4,8-dimethyl-7,8-dihydropyrazino-[1',2':1,5]pyrrolo[2,3-d]pyridazine-1,9(2H,6H)-dioneHCID 54706900—

Reaction Steps

A mixture of 10-(benzyloxy)-2-(4-fluorobenzyl)-4,8-dimethyl-7,8-dihydropyrazino-[1′,2′:1,5]pyrrolo-[2,3-d]pyridazine-1,9(2H,6H)-dione (17 mg, 38 μmol) and Pearlman's catalyst (6.0 mg, 20% Pd(OH)2 on carbon) in ethanol (20 mL) was stirred under an atmosphere of hydrogen gas (1 atm) at room temperature for 30 minutes. The reaction mixture was diluted with acetonitrile and filtered through a pad of Celite. The filtrate was concentrated under vacuum, and the residue triturated with a mixture of methanol and diethyl ether. A solid precipitate was obtained by filtration to provide the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538112B2
Source datasetuspto-grants-2009_05
ORD IDord-c1c698ccd4174a86af731850c3515450
Source noteuspto-grants-2009_05