海洋微生物是寻找药物先导化合物的一个新的源泉,人类已从海洋微生物的次级代谢产物中发现了许多有生物活性的结构新颖的化合物。近几年,本研究组对来自南中国海红树林的海洋真菌的代谢产物进行了系统的研究,从中发现大量有生物活性的化合物,揭示了红树林真菌的巨大应用潜力。海洋真菌ZZF33号由中山大学周世宁教授采自湛江红树林,并鉴定为青霉属,其发酵液的乙酸乙酯提取物对hep2和hepG2细胞具有较强的抑制作用,为寻找活性单体化合物,我们在活性跟踪下对该部位进行了分离,共获得8个化合物,
Eight compounds are isolated from the ferment liquid of mangrove fungus (No. zzf33 ) by silica gel column chromatography. Their structures are determined to be ramlusin ( 1 ) , monodictyxanthone ( 2 ), 8-hydroxy-6-methyl-9-oxo- 9H-xanthene-1-carboxylic acid methyl ester (3) , ( E ) -dec-2- enedioic acid ( 4 ) , succinic acid ( 5 ) , urail ( 6 ) , thymine(7) and nonacosanoic acid (8) on the basis of comprehensive spectroscopic analysis and chemical method. Compounds 1-3 are isolated from Penicillium sp. for the first time. Compound 8 is first found in marine fungus. In the primary bioassay,compound 2 and 3 exhibit high inhibition to hep2 and hepG2 cells lines.