Patent · US Expired

Tetracyclic analogues of camptothecins, their preparation processes, their use as medicaments and the pharmaceutical compositions containing them

US6632946B2 · kind B2 · utility

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5Claims
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Assignee

Inventors

Key dates

Filing dateDec 12, 2000
Grant dateOct 14, 2003
Priority date
Expiry dateDec 12, 2020

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D471/14
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The invention relates to new tetracyclic analogues of camptothecin, their preparation processes, their use as medicaments and the pharmaceutical compositions containing them. Said analogues, which include in particular 3-hydroxy-3-(4-oxo-4,6-dihydroindolizino[1,2-b]quinoline-2-yl)pentanoic acid, have a powerful biological activity inhibiting topoisomerase I and/or topoisomerase II.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.