1,4,8,11-四氮杂环十四烷

2,2'-bi-(1,4,8,11-tetra-azacyclotetradecane)

1,4-双(3-氨基丙基)哌嗪

1,4,8,12-四氮杂环十五烷

1-(pyridin-2-ylmethyl)-1,4,8,11-tetrazacyclotetradecane