4-chloro-N-(2-(7-ethyl-3,4,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indol-2(1H)-yl)ethyl)benzamide

N-(1-methylpyrrolidin-2-ylidene)-2-(2-sulfanylidenepyrrolidin-1-yl)ethanethioamide

methyl 2-isocyanato-2-(1-methylpyrrolidin-2-ylidene)acetate

ethyl 2-isocyanato-2-(1-methylpyrrolidin-2-ylidene)acetate

N-(1-methylpyrrolidin-2-ylidene)-2-(2-oxopyrrolidin-1-yl)acetamide