5-(4-chlorophenyl)-2-methyl-1-(4-nitrophenyl)-3-(pyrrolidin-1-ylmethyl)pyrrole

1-but-3-ynylpyrrolidine

carbon monoxide,chromium,pyrrolidin-1-ide

4-(吡咯烷-1-基)-2-丁炔-1-醇

N-butylpyrrolidine-1-carboxamide