4-methyl-N-[2-[(4-methylphenyl)sulfonyl-[2-[(4-methylphenyl)sulfonyl-[2-[(4-methylphenyl)sulfonylamino]ethyl]amino]ethyl]amino]ethyl]benzenesulfonamide

1-oxa-4,7,10,13-tetrazacyclopentadecane-3,14-dione

1,4-dioxa-7,10,13,16-tetrazacyclooctadecane-6,17-dione

1-thia-4,7,10,13-tetrazacyclopentadecane-3,14-dione

1-thia-4,7,10,13-tetrazacyclopentadecane