Hydrochloric Acid → HCID 16224669, compound

Participants

Reaction Steps

To a solution of (9S)-9-acetoxy-2-acetoxymethyl-9-ethyl-1-pentyl-1H,12H-pyrano[3″,4″:6′7′]indolizino[1′2′:6,5]pyrido[4,3,2-de]quinazoline-10,13(9H,15H)-dione (34 mg, 0.059 mmol) in methanol (3 ml) cooled in an ice-bath was added anhydrous hydrazine (100 μl) and the mixture was stirred for 2 hr. at room temperature. Aqueous 1 N hydrochloric acid solution (5 ml) was added dropwise to acidify the reaction mixture, and the mixture was stirred for 1 hr. at room temperature. The mixture was extracted with dichloromethane (50 ml) and the dichloromethane layer was washed with brine, dried over MgSO4 and evaporated. The residue was purified by column chromatography (dichloromethane/methanol=25/1) to give pure product (19 mg, 65%).

Provenance & Evidence