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topotecan hydrochloride
The hydrochloride salt of a semisynthetic derivative of camptothecin with antineoplastic activity. During the S phase of the cell cycle, topotecan selectively stabilizes topoisomerase I-DNA covalent complexes, inhibiting religation of topoisomerase I-mediated single-strand DNA breaks and producing potentially lethal double-strand DNA breaks when complexes are encountered by the DNA replication machinery. Camptothecin is a cytotoxic quinoline-based alkaloid extracted from the Asian tree Camptotheca acuminata. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
| Synonym: | | hycamptamine | | | | US brand name: | | Hycamtin | | | | Abbreviation: | | TOPO | | | | Code name: | | SKF S-104864-A | | | | Chemical structure name: | | (S)-10-[(dimethylamino)methyl]-4-ethyl-4,9-dihydroxy-1H-pyrano[3',4'; 6,7] indolizino[1,2-b] quinoline-3,14-(4H,12H)-dione monohydrochloride | | |
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