4-hydroxy-4-methylpent-2-ynenitrile

2-methyl-6-phenylhexa-3,5-diyn-2-ol

2,7-二甲基-3,5-辛二炔-2,7-二醇

hexadeca-7,9-diyne

2-hydroxy-2-methyl-3,5-dodecadiyne