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  • Title: Pyrrolo[2,3-d]pyrimidine thymidylate synthase inhibitors: design and synthesis of one-carbon bridge derivatives.
    Author: Aso K, Imai Y, Yukishige K, Ootsu K, Akimoto H.
    Journal: Chem Pharm Bull (Tokyo); 2001 Oct; 49(10):1280-7. PubMed ID: 11605654.
    Abstract:
    A series of novel pyrrolo[2,3-d]pyrimidine derivatives was designed and synthesized as thymidylate synthase (TS) inhibitors. Molecular design was performed on the human TS complex model built on the basis of the reported structure of TS-deoxyuridinemonophosphate (dUMP)-CB3717 ternary complex. From a docking study, we expected that a one-carbon bridge between pyrrolo[2,3-d]pyrimidine and an aromatic ring was suitable. Moreover, we found that the bridge carbon could be replaced with an alkyl group to fill out the unoccupied space. Based on this design, we synthesized five pyrrolo[2,3-d]pyrimidine derivatives with one-carbon bridge and evaluated their TS inhibitory activities. All synthesized compounds inhibited TS more potently than compound 2 (LY231514), and the C8-ethyl analogue (7) showed a remarkable inhibitory activity against TS (IC50=0.017 microM).
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