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  • Title: Marinoquinolines A-F, pyrroloquinolines from Ohtaekwangia kribbensis (Bacteroidetes).
    Author: Okanya PW, Mohr KI, Gerth K, Jansen R, Müller R.
    Journal: J Nat Prod; 2011 Apr 25; 74(4):603-8. PubMed ID: 21456549.
    Abstract:
    Marinoquinoline A (1) was isolated from the gliding bacterium Ohtaekwangia kribbensis together with the novel marinoquinolines B-F (2-6). Their structures were elucidated from NMR and HRESIMS data. The pyrroloquinolines showed weak antibacterial and antifungal activities and moderate cytotoxicity against four growing mammalian cell lines with IC(50) values ranging from 0.3 to 8.0 μg/mL. In a screening against tropical parasites marinoquinolines A-F (1-6) showed activity against Plasmodium falciparum K1 with IC(50) values between 1.7 and 15 μM.
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