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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1835153Generated: October 31, 2026

Isopropylamine → 2,6-Dihydro-2-methyl-6-(1-naphthalenylmethyl)-4-(2-propyl)amino-1H-pyrrolo[3,4-d]pyridazin-1-one

https://huagongshe.com/reaction/1835153

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropylamineHCID 6363—
Reactant4-Chloro-2,6-dihydro-2-methyl-6-(1-naphthalenylmethyl)-1H-pyrrolo[3,4-d]pyridazin-1-oneHCID 23503255—
SolventEthanolHCID 702—
Product2,6-Dihydro-2-methyl-6-(1-naphthalenylmethyl)-4-(2-propyl)amino-1H-pyrrolo[3,4-d]pyridazin-1-oneHCID 23503247—

Reaction Conditions

Temperature200 °C

Reaction Steps

Isopropylamine (1 ml) was added to a solution of 4-chloro-2,6-dihydro-2-methyl-6-(1-naphthalenylmethyl)-1H-pyrrolo[3,4-d]pyridazine-1-one (0.095 g) in ethanol (4 ml) and the mixture was heated in a sealed tube at 200° C. for 3 days then at 250° C. for 24 hours. The mixture was evaporated and the residue was purified by column chromatography, eluting with ethyl acetate followed by recrystallisation from ethyl acetate/isohexane to give the title compound (0.013 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06770646B2
Source datasetuspto-grants-2004_08
ORD IDord-e4484745bf3d4f51b5bcc7c5a4fabdbc
Source noteuspto-grants-2004_08