Three Diketopiperazines from the Cultivated Fungus Fusarium oxysporum

A Trigos, S Reyna, L Cervantes - Natural Product Letters, 1995 - Taylor & Francis
A Trigos, S Reyna, L Cervantes
Natural Product Letters, 1995Taylor & Francis
… for 3) indicated the presence of the 2,5-diketopiperazine skeleton, in agreement with the
13C NMR data. The iso-propyl and iso-butyl moieties bonded to C-9 in 2 and 3, respectively,
were established according to the characteristic 1H and 1% NMR signals, as well as
spectrometric data. Cyclo-(L-prolyl-L-valine) (2) and cyclo-( L-prolyl-Lleucine) (… This
assay was carried out inoculating two coffee plants with 1 ml of a 5 days fungi culture grown
at room temperature. The two plants were inoculated by depositing the culture in …
Abstract
Three bioactive diketopiperazines, cyclo-(L-prolyl-L-glycine), cyclo-(L-prolyl-L-valine) and cyclo-(L-leucyl-L-proline) were isolated from the phytopathogen fungus Fusarium oxysporum.
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