cytochalasin U;<11>Cytochalasin;[11]Cytochalasin;Cytochalasin H (>90%);[(1R,2R,3E,5R,7S,9E,11R,12S,14S,15R,16S)-16-benzyl-5,12-dihydroxy-5,7,14-trimethyl-13-methylidene-18-oxo-17-azatricyclo[9.7.0.01,15]octadeca-3,9-dien-2-yl] acetate
From Phomopsis sp. (68-GO-164) three new cytochalasans named cytochalasins N, O, and P were isolated, besides the four known cytochalasans, cytochalasins H and J and epoxycytochalasins H and J. The structures of the new compounds were determined by spectral analysis, especially by NMR, and by correlation reactions with known compounds.
Unreported cytochalasins from an acid-mediated transformation of cytochalasin J isolated from Diaporthe cf. ueckeri
作者:Blondelle Matio Kemkuignou、Christopher Lambert、Katharina Schmidt、Lena Schweizer、Elodie Gisèle M. Anoumedem、Simeon F. Kouam、Marc Stadler、Theresia Stradal、Yasmina Marin-Felix
DOI:10.1016/j.fitote.2023.105434
日期:2023.4
compounds except for cytochalasins H and J were tested for antimicrobial and cytotoxic activity. Cytochalasins J4 and J5 showed neither antimicrobial nor cytotoxic activity in the tested concentrations, with only weak antiproliferative activity observable against KB3.1 cells. The actin disruptive properties of all cytochalasins obtained in this study and of the previously reported cytochalasins RKS-1778 and