dimethyl 5-(diphenylphosphoryl)-6-((diphenylphosphoryl)ethynyl)-4,7-dimethyl-1,3-dihydro-2H-indene-2,2-dicarboxylate

3'-(but-2-yn-1-yl)-3-methyl-2',3'-dihydro-9'H-spiro[azirine-2,1'-pyrrolo[2,1-b]quinazolin]-9'-one

dimethyl 2-(but-2-yn-1-yl)-2-((1-(4-methoxybenzyl)-4,5-dimethyl-1H-pyrrol-3-yl)methyl)malonate

3-amino-2-(hepta-1,6-diyn-4-yl)quinazolin-4(3H)-one