7-[2-(2-aminocyclopentyl)acetyl]spiro[2,3-dihydropyrazino[1,2-a]indole-4,1'-cyclobutane]-1-one;tert-butyl N-(2-aminocyclopentyl)carbamate;tert-butyl 2-[2-[(2-methylpropan-2-yl)oxycarbonylamino]cyclopentyl]acetate;tert-butyl N-[2-[2-oxo-2-(1-oxospiro[2,3-dihydropyrazino[1,2-a]indole-4,1'-cyclobutane]-7-yl)ethyl]cyclopentyl]carbamate;cyclopentane-1,2-diamine;cyclopentane-1,2-diol;1,2-diazidocyclopentane;1-[hydroxy(methyl)-lambda3-chloranyl]ethanone;methane;(2-methylcyclopentyl) methanesulfonate;N-[2-[2-oxo-2-(1-oxospiro[2,3-dihydropyrazino[1,2-a]indole-4,1'-cyclobutane]-7-yl)ethyl]cyclopentyl]prop-2-enamide;palladium;prop-2-enoyl chloride;dihydrate