2-(2-nitrophenylsulfonylamino)-N-[(1R,2R)-2-(2-nitrophenylsulfonylamino)cyclohexyl]acetamide

(4R,9R,12S)-12-isopropyl-3,13-bis(2-nitrobenzenesulfonyl)-3,10,13,19-tetraazatricyclo[13.3.1.0(4,9)]nonadeca-1(19),15,17-trien-11-one

(4R,9R)-3,13-bis(2-nitrobenzenesulfonyl)-3,10,13,19-tetraazatricyclo[13.3.1.0(4,9)]nonadeca-1(19),15,17-trien-11-one

(4R,9R)-12-benzyl-3,10,13,19-tetraazatricyclo[13.3.1.0(4,9)]nonadeca-1(19),15,17-trien-11-one