3-[(2-furylmethyl)amino]-3-[5-(2-phenyl-1-ethynyl)-1,3,4-oxadiazol-2-yl]-2-butanone

5,8-diethoxy-2,3-dimethyl-quinoxaline

2,2,2-triphenoxy-4,5-diphenyl-2,2-dihydro-1,3,2-dioxaphospholene

dimethyl-2,3 methoxy-6 nitro-5 quinoxaline