Year-end Sale % OFF 
Abstract
A new method for the production and isolation of (+)-palitantin (1) is herein reported, from cultures of the fungal strain Penicillium sp. AMF1a. (+)-Palitantin was isolated in 160 mg/L yield, as an alternative procedure to obtain 1 at a larger scale. The complete spectroscopic characterization, including conformational analysis, is presented for (+)-palitantin (1) and for its derivatives 3-α-palitantol (2), 3-β-palitantol (3), (Z)-palinitrorin (4), (Z)-paliphenin (5), (Z)-palifluorin (6) and (E)-palifluorin (7). The absolute configuration of the palitantin portion was confirmed by X-ray analysis of compound 4. The (4-(trifluoromethyl)benzyl)-hydrazone derivatives (6 and 7) displayed moderate biological activities. (Z)-Palifluorin (6) exhibited moderate antiplasmodial activity, while (E)-palifluorin (7) displayed weak antibacterial activity against E. faecalis and S. aureus, while palitantin itself was inactive in the same bioassays, indicating that the semi-synthesis of nitrogenated derivatives of 1 may be of potential interest to generate bioactive palitantin derivatives.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
