New Metabolites with Nematicidal and Antimicrobial Activities from the Ascomycete Lachnum papyraceum (Karst.) Karst. VIII. Isolation, Structure Determination and Biological Activities of Minor Metabolites Structurally Related to Mycorrhizin A.
作者:RUDONG SHAN、MARC STABLER、OLOV STERNER、HEIDRUN ANKE
DOI:10.7164/antibiotics.49.447
日期:——
Five new minor metabolites, papyracon D (6), 6-O-methylpapyracon B (9), 6-O-methylpapyracon C (10), lachnumfuran A (11) and lachnumlactone A (12a), together with the known chloromycorrhizinol A (4), have been isolated from extracts of the culture fluids of the ascomycete Lachnum papyraceum. The compounds, which structures were determined by spectroscopic methods, are structurally related to the nematicidal
五个新的次要代谢物,纸莎草D(6),6-O-甲基pa草B(9),6-O-甲基pa草C(10),拉克呋喃A(11)和拉克内酯A(12a),以及已知的氯菌根醇A( 4)已经从子囊菌Lachnum papyraceum的培养液的提取物中分离出来。这些化合物的结构通过光谱学方法确定,与杀线虫和抗生素菌根A(1)在结构上相关,后者也由真菌产生。与菌根素A相比,新化合物的杀线虫,抗生素和细胞毒性活性较弱(1)。Papyracon D(6)具有最高的抗生素活性,而lachnumlactone A(12a)具有最大的杀线虫性和细胞毒性。