Psychrophilins B (1) and C (2), two new cyclic nitropeptides, have been isolated from the psychrotolerant, new species Penicillium rivulum Frisvad. The nitropeptides were isolated by high-speed countercurrent chromatography (HSCCC) and HPLC using UV-guided fractionation of the organic extract.
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Bioactive cyclic peptides from the psychrotolerant fungus Penicillium algidum.
J Antibiot (Tokyo)
February 2005
Marine Chemistry Section, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
A new cyclic nitropeptide, psychrophilin D (1), together with two known cyclic peptides, cycloaspeptide A (2) and cycloaspeptide D (3), were isolated from the psychrotolerant fungus Penicillium algidum using C18 flash chromatography, LH-20 Sephadex and preparative HPLC. The structure of psychrophilin D (1) was derived from mass spectrometric information, 1D and 2D NMR spectra and Marfey's method. The compounds were tested in antimicrobial, antiviral, anticancer and antiplasmodial assays.
View Article and Find Full Text PDFPsychrophilin B and C: cyclic nitropeptides from the psychrotolerant fungus Penicillium rivulum.
J Nat Prod
November 2004
Marine Chemistry Section, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
Psychrophilins B (1) and C (2), two new cyclic nitropeptides, have been isolated from the psychrotolerant, new species Penicillium rivulum Frisvad. The nitropeptides were isolated by high-speed countercurrent chromatography (HSCCC) and HPLC using UV-guided fractionation of the organic extract.
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