Ethanol → HCID 49805247, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl [2-methyl-4-(p-tolyl)-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridin-3-yl]-4,4-dimethylpentanoate (0.039 g; 0.089 mmol) in methanol (2.7 mL) was added a 5% sodium hydroxide solution (2.68 mmol; 2.15 mL) and the reaction mixture was heated at 60° C. 18 h. An extra volume of 5% sodium hydroxide solution (1 mL) and ethanol (1 mL) were added and the reaction mixture was heated at 60° C. for 12 additional hours. After cooling, the volatiles were removed under reduced pressure and the residue was dissolved in water. The mixture was acidified with HCl (1N) until pH 2 and the aqueous layer was extracted with ethyl acetate. The organics were combined, dried over magnesium sulphate and concentrated under reduced pressure. The white solid was crystallized in a mixture ethyl acetate-heptane to furnish 0.025 g (67%) of the title compound as a white solid.

Provenance & Evidence