(2S)-1-[N-(tert-Butoxycarbonyl)-L-prolyl]-2-{1-hydroxy-2-[(3,4-methylenedioxy)phenoxy]ethyl} pyrrolidine 、
异氰酸苄酯 以there was obtained 2.06 g of the title compound的产率得到(2S)-1-[N-(Benzylaminocarbonyl)-L-prolyl]-2-{[(3,4-methylenedioxy)phenoxy]acetyl} pyrrolidine