tert-Butyl piperazine-1-carboxylate → HCID 178452258, compound

Participants

Reaction Conditions

Reaction Steps

A mixture consisting of 2.31 g of 5-benzyloxymethyl-2-chloro-4-oxo-4,5-dihydroimidazo[4,5-d]pyridazine-1-sulfonic acid dimethylamide and 4.49 g of t-butyl piperazine-1-carboxylate was heated at 150° C. under nitrogen atmosphere for 2.5 hours. The residue was purified by silica gel column chromatography. Thus, 1.94 g of the title compound was obtained from the fraction eluted with ethyl acetate.

Provenance & Evidence