FIT-039 是一种选择性，ATP 竞争性且具有口服活性的 CDK9 抑制剂，对 CKD9/cyclin T1 的 IC₅₀ 为 5.8 μM。FIT-039 不抑制其他 CDK 和其他激酶。FIT-039 抑制 HSV-1 (IC₅₀ 为 0.69 μM)，HSV-2，人腺病毒和人 CMV 的复制。FIT-039 是一种有前途的抗病毒剂，可用于抑制耐药性 HSV 和其他 DNA 病毒。

FIT-039 is a selective, ATP-competitive and orally active CDK9 inhibitor with an IC 50 of 5.8 μM for CKD9/cyclin T1. FIT-039 does not inhibit other CDKs and other kinases. FIT-039 inhibits replication of HSV-1 (IC 50 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.

Solid

CDK9/cyclinT1 5.8 μM (IC50) HSV-1 0.69 μM

FIT-039 (30 μM; 3 hours; HEK293 cells) treatment decreases phosphorylated CTD in the infected or noninfected cells to a level lower than that shown by Flavopiridol. FIT-039 reduces the expression levels of HSV-1 immediate-early genes (IEGs) and early and late genes.
FIT-039 inhibits replication of the HSV-1 genome in a dose-dependent manner (EC50 and EC80 are 0.69 μM and 4.0 μM, respectively).
FIT-039 potently suppresses 8 kinases (GSK3β, PKN1, haspin, p70s6K, DYRK1B, GSK3α, IRR, and DYRK3) other than CDK9 on the 332-kinase panel. These kinases are involved in the replication of various viruses. has not independently confirmed the accuracy of these methods. They are for reference only.

Treatment with the FIT-039 ointment twice a day suppresses skin lesions and rescues mice (male BALB/c mice injected with HSV-1) from lethality in a dose-dependent manner. The healing of lesions is observed with 5% to 10% FIT-039 ointment, leading to the complete regression of zosteriform spread on day 10, which is also observed with the 5% ACV ointment.
FIT-039 does not affect body weight gain in mice administrated with an overdose of this compound (1000 mg/kg/d) for 14 days, and no changes are observed in biological markers in their blood. has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years；In solvent -80°C 6 months

[1]. Makoto Yamamoto, et al. CDK9 Inhibitor FIT-039 Prevents Replication of Multiple DNA Viruses. J Clin Invest. 2014 Aug;124(8):3479-88.

In Vitro: DMSO : 100 mg/mL (317.05 mM; Need ultrasonic)配制储备液