Atiratecan

Modify Date: 2025-08-27 14:53:02

Atiratecan Structure
Atiratecan structure
Common Name Atiratecan
CAS Number 867063-97-6 Molecular Weight 586.63800
Density N/A Boiling Point N/A
Molecular Formula C31H34N6O6 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of Atiratecan


Atiratecan (TP300) is a prodrug of camptothecin analog CH0793076 (HY-107096). Atiratecan does not inhibit acetylcholinesterase (AChE) activities. Atiratecan shows antitumor activity against both breast cancer resistance protein (BCRP)-positive and -negative xenografts in mouse xenograft models[1].

 Names

Name Atiratecan
Synonym More Synonyms

 Atiratecan Biological Activity

Description Atiratecan (TP300) is a prodrug of camptothecin analog CH0793076 (HY-107096). Atiratecan does not inhibit acetylcholinesterase (AChE) activities. Atiratecan shows antitumor activity against both breast cancer resistance protein (BCRP)-positive and -negative xenografts in mouse xenograft models[1].
Related Catalog
In Vitro Atiratecan (TP300) is stable in an acidic solution but is rapidly converted to CH0793076 under physiological pH conditions such as in sera[1]. Atiratecan has antiproliferative activity against camptothecin-resistant cell lines. Atiratecan has IC50s of 9.4 nM and 1.1 nM for A2780 and A2780/SN75 cells, respectively[1].
In Vivo Atiratecan (TP300; 47 mg/kg; IV; once per week for 3 weeks) shows more than 50% of tumor growth inhibition in all nine models, regardless of the expression of BCRP[1]. Atiratecan (24 mg/kg; IV; once per week for 6 weeks) in combination with capecitabine results in synergistic eVects in the HCT116 human colon cancer and NCI-N87 human gastric cancer xenograft models and an additive eVect in the WiDr human colon cancer xenograft model which is BCRP-positive and CPT-11-insensitive[1]. The eVective dose range of Atiratecan is between 0.30 and 47 mg/kg (MTD/ED50=157). The toxic dose is 63 mg/kg for Atiratecan[1]. Animal Model: Five-week-old male athymic nude mice (CAnN.CgFoxn1nu/CrlCrlj)[1] Dosage: 47 mg/kg (the maximum tolerated dose; MTD) Administration: IV; once per week for 3 weeks Result: Showed more than 50% of tumor growth inhibition in all models, regardless of the expression of BCRP.
References

[1]. Endo M, et al. A water soluble prodrug of a novel camptothecin analog is efficacious against breast cancerresistance protein-expressing tumor xenografts. Cancer Chemother Pharmacol. 2010 Jan;65(2):363-71.

 Chemical & Physical Properties

Molecular Formula C31H34N6O6
Molecular Weight 586.63800
Exact Mass 586.25400
PSA 151.64000
LogP 3.28780

 Synonyms

(9S)-9-Et1,2,3-Phyl-10,13-dioxo-1-pentyl-9,10,13,15-tetrahydro-1H,12H-pyrano(3'',4'':6',7')indolizino(2',1':5,6)pyrido(4,3,2-de)quinazolin-9-yl glycyl-N-methylglycinate
UNII-B0AMG37FFR
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