Chemical constituents of the ascomycete Daldinia concentrica

Chemical constituents of the ascomycete Daldinia concentrica
复制标题

DOI:
10.1021/np020301h
复制
发表时间:
2002-12-01
影响因子:
5.1
通讯作者:
Asakawa, Y
Asakawa, Y
中科院分区:
生物学2区
文献类型:
--
作者:
Quang, DN;Hashimoto, T;Asakawa, Y

文献摘要

被引文献

相似文献

从欧洲采集的同心轮炭(Daldinia concentrica)子实体的乙酸乙酯提取物中分离得到4个化合物,即轮炭酮A(1)、轮炭酮B(2)、轮炭酮(4-甲氧基-5-甲氧羰基-6-戊基-2H-吡喃-2-酮,3)和轮炭酮(22 R-hydroxylanosta-7,9(11),24-trien-3-one,4)。此外,还报道了11种已知化合物,4:5:4 ':5'-四羟基-1:1 '-联萘(5),3,4,5-三羟基-1-四氢萘酮(6),(+)-原孢菌素(7),箭毒木脂素D(8),(22 E)-胆甾-4,6,8(14),22-四烯-3-酮(9),3 β,22-二羟基甾-7,9(11),24-三烯(10),concentricol(11),得到concentricol B(12)、concentricol C(13)、concentricol D(14)和表松弛素B(15)。新化合物的结构经2D NMR、MS、IR、UV和X-射线晶体学分析确证。1和4的绝对构型分别用圆二色光谱法和改进的Mosher法测定。在本次调查中获得的化合物的化学分类学的相关性进行了讨论。
Four compounds, daldinone A (1), daldinone B (2), daldiniapyrone (4-methoxy-5-carbomethoxy-6-pentyl-2H-pyran-2-one, 3), and daldinialanone (22R-hydroxylanosta-7,9(11),24-trien-3-one, 4), were isolated from an ethyl acetate extract of fruit bodies of Daldinia concentrica collected in Europe. In addition, 11 known compounds, 4:5:4':5'-tetrahydroxy-1:1'-binaphthyl (5), 3,4,5-trihydroxy-1-tetralone (6), (+)-orthosporin (7), curuilignan D (8), (22E)-cholesta-4,6,8(14),22-tetraen-3-one (9), 3beta,22-dihydroxylanosta-7,9(11),24-triene (10), concentricol (11), concentricol B (12), concentricol C (13), concentricol D (14), and phenochalasin B (15), were obtained. The structures of the new compounds were elucidated by 2D NMR, MS, IR, and UV spectra and by X-ray crystallographic analysis. The absolute configurations of 1 and 4 were determined by CD spectroscopy and the modified Mosher's method, respectively. The chemotaxonomic relevance of the compounds obtained in this investigation is discussed.