5-chloro-7-[2-deoxy-β-D-erythro-pentofuranosyl]-2,4-dimethoxy-7H-pyrrolo[2,3-d]pyrimidine

7-[2-deoxy-β-D-erythro-pentofuranosyl]-5-iodo-2,4-dimethoxy-7H-pyrrolo[2,3-d]pyrimidine

2-(3-acetyl-2-ethylsulfanyl-thiazolidin-2-yl)-2-benzoylamino-4-methylsulfanyl-butyric acid methyl ester

2-Bromo-3-dibromomethylene-5,5-dimethyl-cyclopent-1-enecarboxylic acid methyl ester