ethyl 16-amino-15-nitro-7-oxo-5,12-dioxa-2,8-diaza-1(4,2)-pyrimidina-4(1,3)-benzenacyclododecaphane-2-carboxylate

ethyl 2-(3-(((6-amino-2-(methylthio)-5-nitropyrimidin-4-yl)(ethoxycarbonyl)amino)methyl)phenyl)acetate

ethyl 2-(3-(((6-amino-2-(methylsulfinyl)-5-nitropyrimidin-4-yl)(ethoxycarbonyl)amino)methyl)phenyl)acetate

ethyl 2-(3-(((6-amino-2-((2-hydroxyethyl)(methyl)amino)-5-nitropyrimidin-4-yl)(ethoxycarbonyl)amino)methyl)phenyl)acetate

ethyl 2-(3-((6-amino-8-hydroxy-2-((2-hydroxyethyl)(methyl)amino)-9H-purin-9-yl)methyl)phenyl)acetate