<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Evidente, Antonio</style></author><author><style face="normal" font="default" size="100%">Andolfi, Anna</style></author><author><style face="normal" font="default" size="100%">Fiore, Michele</style></author><author><style face="normal" font="default" size="100%">Spanu, Emanuela</style></author><author><style face="normal" font="default" size="100%">Maddau, Lucia</style></author><author><style face="normal" font="default" size="100%">Franceschini, Antonio</style></author><author><style face="normal" font="default" size="100%">Marras, Francesco</style></author><author><style face="normal" font="default" size="100%">Motta, Andrea</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Diplobifuranylones A and B, 5‘-Monosubstituted Tetrahydro-2H-bifuranyl-5-ones Produced by Diplodia corticola, a Fungus Pathogen of Cork Oak</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Natural Products</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Chemical characterization</style></keyword><keyword><style  face="normal" font="default" size="100%">Diplobifuranylones</style></keyword><keyword><style  face="normal" font="default" size="100%">Diplodia corticola</style></keyword><keyword><style  face="normal" font="default" size="100%">metabolites</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytotoxicity (voyant)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2006///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/np050393l</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">671 - 674</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Two new 5?-monosubstituted tetrahydro-2H-bifuranyl-5-ones, named diplobifuranylones A and B (1 and 2), were isolated from the culture filtrates of Diplodia corticola, the causal agent of a canker of cork oak (Quercus suber). The same fungus also produced eight known metabolites, namely, the diplopyrone, (3S,4R)-trans- and (3R,4R)-cis-4-hydroxymellein, sapinofuranone B and its (S,S)-enantiomer, and sphaeropsidins A?C. Diplobifuranylones A and B (1 and 2) were characterized, using spectroscopic and chemical methods, as two diastereomeric 5?-(1-hydroxyethyl)-3,4,2?,5?-tetrahydro-2H-[2,2?]bifuranyl-5-ones. While the relative stereochemistry of the two metabolites (1 and 2) was deduced by NOESY and ROESY experiments, the absolute stereochemistry of the chiral carbon of the hydroxyethyl side chain at C-5?, determined by application of Mosher's method, proved to be S and R in 1 and 2, respectively. Assayed on a nonhost plant, diplobifuranylones A and B did not show phytotoxic activity. In an Artemia salina larvae lethality bioassay neither 1 nor 2 was toxic at the highest concentration tested (300 ?g/mL).</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/np050393ldoi: 10.1021/np050393lThe following values have no corresponding Zotero field:&lt;br/&gt;publisher: American Chemical Society</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Evidente, Antonio</style></author><author><style face="normal" font="default" size="100%">Andolfi, Anna</style></author><author><style face="normal" font="default" size="100%">Fiore, Michele</style></author><author><style face="normal" font="default" size="100%">Spanu, Emanuela</style></author><author><style face="normal" font="default" size="100%">Maddau, Lucia</style></author><author><style face="normal" font="default" size="100%">Franceschini, Antonio</style></author><author><style face="normal" font="default" size="100%">Marras, Francesco</style></author><author><style face="normal" font="default" size="100%">Motta, Andrea</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Diplobifuranylones A and B, 5‘-Monosubstituted Tetrahydro-2H-bifuranyl-5-ones Produced by Diplodia corticola, a Fungus Pathogen of Cork Oak</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Natural Products</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Chemical characterization</style></keyword><keyword><style  face="normal" font="default" size="100%">Diplobifuranylones</style></keyword><keyword><style  face="normal" font="default" size="100%">Diplodia corticola</style></keyword><keyword><style  face="normal" font="default" size="100%">metabolites</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytotoxicity (voyant)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">671-674</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Two new 5?-monosubstituted tetrahydro-2H-bifuranyl-5-ones, named diplobifuranylones A and B (1 and 2), were isolated from the culture filtrates of Diplodia corticola, the causal agent of a canker of cork oak (Quercus suber). The same fungus also produced eight known metabolites, namely, the diplopyrone, (3S,4R)-trans- and (3R,4R)-cis-4-hydroxymellein, sapinofuranone B and its (S,S)-enantiomer, and sphaeropsidins A?C. Diplobifuranylones A and B (1 and 2) were characterized, using spectroscopic and chemical methods, as two diastereomeric 5?-(1-hydroxyethyl)-3,4,2?,5?-tetrahydro-2H-[2,2?]bifuranyl-5-ones. While the relative stereochemistry of the two metabolites (1 and 2) was deduced by NOESY and ROESY experiments, the absolute stereochemistry of the chiral carbon of the hydroxyethyl side chain at C-5?, determined by application of Mosher's method, proved to be S and R in 1 and 2, respectively. Assayed on a nonhost plant, diplobifuranylones A and B did not show phytotoxic activity. In an Artemia salina larvae lethality bioassay neither 1 nor 2 was toxic at the highest concentration tested (300 ?g/mL).</style></abstract><notes><style face="normal" font="default" size="100%">doi: 10.1021/np050393l</style></notes><research-notes><style face="normal" font="default" size="100%">doi: 10.1021/np050393l</style></research-notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mallea, M</style></author><author><style face="normal" font="default" size="100%">Pesando, D</style></author><author><style face="normal" font="default" size="100%">Bernard, P</style></author><author><style face="normal" font="default" size="100%">Khoulalene, B</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison between antifungal and antibacterial activities of several strains of Epicoccum purpurascens from the Mediterranean area.</style></title><secondary-title><style face="normal" font="default" size="100%">Mycopathologia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">antimicrobial activity</style></keyword><keyword><style  face="normal" font="default" size="100%">cultural characteristics</style></keyword><keyword><style  face="normal" font="default" size="100%">Epicoccum purpurascens</style></keyword><keyword><style  face="normal" font="default" size="100%">intraspecies com- parison</style></keyword><keyword><style  face="normal" font="default" size="100%">metabolites</style></keyword><keyword><style  face="normal" font="default" size="100%">thin layer chromatography</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><volume><style face="normal" font="default" size="100%">115</style></volume><pages><style face="normal" font="default" size="100%">83-88</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The antimicrobial activities of seven Epicoccum purpurascens strains isolated either from evergreen oak leaves (Quercus ilex) collected over a period of one year, or from the atmosphere were compared in vitro. Two strains sporulated and conspicuously inhibited the growth of Staphylococcus aureus and Trichophyton mentagrophytes. Thin-layer chromatographic studies showed the existence of some compounds, such as flavipin, which were common to all the strains. Epicorazine B was present in the extracts of only the two most active strains.</style></abstract><accession-num><style face="normal" font="default" size="100%">1784310</style></accession-num></record></records></xml>