(1R,2S,3R,4R,5R)-3-(2-chloro-5-fluoropyrimidin-4-ylamino)-5-((N-(3-nitrobenzyl)-acetamido)methyl)bicyclo[2.2.1]heptane-2-carboxamide

(1R,2S,3R,4R,5R)-3-[(2-chloro-5-fluoropyrimidin-4-yl)-amino]-5-{[(3-nitrobenzyl)-amino]methyl}-bicyclo[2.2.1]heptane-2-carboxamide

(1S,2S,3R,4R,5R)-3-(2-chloro-5-fluoropyrimidin-4-ylamino)-5-(2-(2-(4-methyl-piperazin-1-yl)-5-nitrophenyl)acetamido)bicyclo[2.2.1]heptane-2-carboxamide

(1R,2S,3R,4R,5R)-3-(2-chloro-5-fluoropyrimidin-4-ylamino)-5-((2-(4-methyl-piperazin-1-yl)-5-nitrobenzylamino)methyl)bicyclo[2.2.1]heptane-2-carboxamide

(1R,2S,3R,4R,5R)-3-(2-chloro-5-fluoropyrimidin-4-ylamino)-5-((3-(4-methyl-piperazin-1-yl)-5-nitrophenylsulfonamido)methyl)bicyclo[2.2.1]heptane-2-carboxamide