(1S,2R,3S,4R)-methyl 2-((tert-butyldiphenylsilyl)oxy)-4-((5-iodo-2-(methylthio)pyrimidin-4-yl)amino)-3-methoxycyclopentanecarboxylate

(1S,2R,3S,4R)-methyl 4-((5-(benzo[d]thiazol-2-yl)-2-(methylthio)pyrimidin-4-yl)amino)-2-((tert-butyldiphenylsilyl)oxy)-3-methoxycyclopentanecarboxylate

(1S,2R,3S,4R)-methyl 4-((2-amino-5-(benzo[d]thiazol-2-yl)pyrimidin-4-yl)amino)-2-((tert-butyldiphenylsilyl)oxy)-3-methoxycyclopentanecarboxylate

(1S,2R,3S,4R)-methyl 4-((5-(benzo[d]thiazol-2-yl)-2-((2,6-dimethylpyridin-4-yl)amino)pyrimidin-4-yl)amino)-2-((tert-butyldiphenylsilyl)oxy)-3-methoxycyclopentanecarboxylate