CH-0793076, a hexacyclic camptothecin analog, is an active drug and major metabolite of TP300. CH-0793076 is efficacious against cells expressing BCRP (breast cancer resistance protein). CH-0793076 inhibits DNA topoisomerase I (IC50: 2.3 μM).

CH0793076 (6 days at 37°C) displays antiproliferative activity against PC-6/BCRP and PC-6/pRC cells (IC50: 0.35 and 0.18 nM).

TP300 (1-100 mg/kg; bolus intravenous injection once per week for 3 weeks, for a total of three doses) shows more than 50% of tumor growth inhibition in all nine models.

534605-78-2

C26H26N4O4

458.51

TP3076

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years