1'-benzyl-5'-ethoxyspiro[cyclohexane-1,3'-indoline]-4,2'-dione cyclic 4-ethylene ketal

10-methoxy-1,4,7-tris(trifluoroacetyl)-1,4,7-triazacyclododecane

1,4,7-tris(p-tolylsulfonyl)-1,4,7-triazacyclododec-10-ol

S,S'-bis(10-(1,4,7-tris(trifluoroacetyl)-1,4,7-triazacyclododecyl))-1',5'-dithiopentane

S,S'-bis(10-(1,4,7-tris(trifluoroacetyl)-1,4,7-triazacyclododecyl))-4',4''-dithiobiphenyl