The acetone filtrate was concentrated to dryness under reduced pressure and the residue was slurried in water, filtered and crystallized from ethyl acetate. The solution was evaporated to dryness under reduced pressure to give after recrystallization from isopropyl alcohol Pentanoic acid combines with methyl amine to give corresponding amides. This was added to ml. Z-iminol - 4-butyramidophenyl pyrrolidine j Z-imino-l -methylpyrrolidine.
nest...