3,9,13,19,23,29,33,39-octaoxa-1,11,21,31(2,6)-tetrapyridinacyclotetracontaphan-4,8,14,18,24,28,34,38-octaone

triphenyl-[[6-(triphenylstannyloxymethyl)pyridin-2-yl]methoxy]stannane

3,6,9,12,15-pentaoxa-21-azabicyclo[15.3.1]henicosa-1(21),17,19-triene

2-[[6-(chloromethyl)pyridin-2-yl]methyl]isoindole-1,3-dione