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

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

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

(1R,2S,3R,4R,5R)-5-((2-(3-aminophenyl)acetamido)methyl)-3-(2-chloro-5-fluoro-pyrimidin-4-ylamino)bicyclo[2.2.1]heptane-2-carboxamide

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