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Mixed steroidal 1,2,4,5-tetraoxanes: Antimalarial and antimycobacterial activity

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2002
Authors
Šolaja, Bogdan
Terzić, Nataša
Pocsfalvi, G.
Gerena, L.
Tinant, Bernard
Opsenica, Dejan
Milhous, Wilbur K.
Article (Published version)
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Abstract
Mixed 1,2,4,5-tetraoxanes possessing simple spirocycloalkane and spirocholic acid-derived substituents were prepared and shown to have significantly higher in vitro antimalarial activity than bis-substituted tetraoxanes. Out of 41 synthesized tetraoxanes, 12 were in vitro more potent against Plasmodium falciparum chloroquine-resistant W2 clone than artemisinin, and the most potent one was 2.4 times as active as arteether. In addition, 9 compounds exhibit higher activity than chloroquine against P. falciparum chloroquine-susceptible D6 clone. Cytotoxicity was assessed for most active compounds against the Vero cell line, showing a cytotoxicity/antimalarial potency ratio of 1/(1400-9500). For the first time, tetraoxanes were screened against Mycobacterium tuberculosis with MICs as low as 4.73 μM against H37Rv strain. Mixed tetraoxanes were synthesized in a simple procedure from cholic acid methyl esters by direct coupling of steroidal gem-dihydroperoxide to simple ketones and further tra...nsformed into corresponding acids and amides.

Source:
Journal of Medicinal Chemistry, 2002, 45, 16, 3331-3336
Publisher:
  • Amer Chemical Soc, Washington

DOI: 10.1021/jm020891g

ISSN: 0022-2623

PubMed: 12139444

WoS: 000177142800002

Scopus: 2-s2.0-0036682037
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102
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/91
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