FIT-039 是一种选择性和 ATP 竞争性的口服活性 CDK9 抑制剂，对CKD9/cyclin T1的IC50为 5.8 μM。它抑制HSV-1(IC50为 0.69 μM)，HSV-2，人腺病毒和人CMV的复制。它可抑制耐药性HSV和其他 DNA 病毒，是有前途的抗病毒药物。

FIT-039 is a selective and ATP-competitive, orally active inhibitor of CDK9( IC50 : 5.8 μM;CDK9/cyclin T1). FIT-039 inhibits replication of HSV-1 (IC50 of 0.69 μM), HSV-2, human adenovirus, and human CMV. FIT-039 is a promising antiviral agent for inhibiting drug-resistant HSVs and other DNA viruses.

FIT-039 inhibits HPV replication and expression of E6 and E7 viral oncogenes, restoring tumor suppressors p53 and pRb in HPV+?cervical cancer cells. The therapeutic effect of FIT-039 was demonstrated in CIN model of an organotypic raft culture, where FIT-039 suppressed HPV18-induced dysplasia/hyperproliferation with reduction in viral load. FIT-039 also repressed growth of HPV16+, but not HPV-?cervical cancer xenografts without any significant adverse effects. Safety and pharmacokinetics of FIT-039 were confirmed for systemic and topical routes[1].

Examined FIT-039 for its effect on HPV gene expression in HPV+ cervical cancer cells.?Primary keratinocytes monolayer and organotypic raft culture models were used to evaluate HPV viral replication and cervical intraepithelial neoplasia (CIN) phenotypes.?Preclinical pharmacokinetics and toxicity tests for FIT-039 were also conducted.?Finally, the anti-HPV effect of FIT-039 was further examined in vivo, using HPV+ cervical cancer xenografts[1]

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DMSO:10 mM
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