Hydrochloric Acid → HCID 60164763, compound

Participants

Reaction Conditions

Reaction Steps

LiOH (9 mg, 0.21 mmol) was added to a solution of 6,6-dioxo-5,6-dihydro-6λ*6*-thia-4,5-diaza-chrysene-9-carboxylic acid methyl ester 307 (33 mg, 0.097 mmol) in MeOH (2 ml) and the mixture was heated at 65° C. for 18 h. After cooling, the pH was adjusted to 7-8 with methanolic HCl. The mixture was concentrated in vacuo. The crude residue was purified by column chromatography with DCM/MeOH (90:10) as the eluent to give the title compound (28 mg, 90%).

Provenance & Evidence