Hydrochloric Acid → HCID 9805193, compound

Participants

Reaction Steps

A solution of lithium hydroxide hydrate (0.035 g) in water (1 ml) was added to a solution of methyl 4-{[4,5-dihydro-5-methyl-7-(2-methylpropyl)-2-(1-naphthalenylmethyl)-4-oxothieno[2,3-d]pyridazin-3-yl]thio}butanoate (0.20 g) in tetrahydrofuran (6 ml) at room temperature. After 2 days, 1M hydrochloric acid (20 ml) was added and the mixture was extracted with ethyl acetate (20 ml). The organic extracts were washed with brine, dried, filtered and evaporated. The residue was dissolved in ethyl acetate:isohexane (1:2) and the precipitated solid was collected. The solid was suspended in boiling ethyl acetate (20 ml), cooled and collected to give the title compound (0.05 g).

Provenance & Evidence