nor-Mevaldic acid surrogates as selective antifungal agent leads against Botrytis cinerea. Enantioselective preparation of 4-hydroxy-6-(1-phenylethoxy)tetrahydro-2H-pyran-2-one
                                
                                    
                                        作者:José Manuel Botubol-Ares、María Jesús Durán-Peña、Rosario Hernández-Galán、Isidro G. Collado、Laurence M. Harwood、Antonio J. Macías-Sánchez                                    
                                    
                                        DOI:10.1016/j.bmc.2015.04.048
                                    
                                    
                                        日期:2015.7
                                    
                                    Solvent-free desymmetrisation of meso-dialdehyde 1 with chiral 1-phenylethan-1-ol, led to preparation of 4-silyloxy-6-alkyloxytetrahydro-2H-pyran-2-one (+)-3a with a 96: 4 dr Deprotected lactone (+)-19a and the related racemic lactones 16a-18a present a lactone moiety resembling the natural substrate of HMG-CoA reductase and their antifungal properties have been evaluated against the phytopathogenic fungi Botrytis cinerea and Colletotrichum gloeosporioides. These compounds were selectively active against B. cinerea, while inactive against C. gloeosporioides. (C) 2015 Elsevier Ltd. All rights reserved.