Studies on Metabolites of Mycoparasitic Fungi. III. New Sesquiterpene Alcohol from Trichoderma koningii.
作者:Qing HUANG、Yasuhiro TEZUKA、Yasumaru HATANAKA、Tohru KIKUCHI、Arasuke NISHI、Keisuke TUBAKI
DOI:10.1248/cpb.43.1035
日期:——
A new sesquiterpene alcohol, named tricho-acorenol (1), was isolated from the culture broth of Trichoderma koningii OUDEMANS along with methyl benzoate (2), cyclonerodiol (3), cyclo-(L-Pro-L-Leu) (4), 4-hydroxyphenethyl alcohol (5), uracil (7), and a ceramide (6). The ceramide (6) was identified as (2S, 3S, 4R)-2-[(2R)-2-hydroxytetracosanoylamino]-1, 3, 4-octadecanetriol by the use of ion-spray ionization MS (ISI-MS) and comparison of the optical rotation and the 1H-NMR data with those of (2S, 3S, 4R)-2-[(2R)-2-hydroxytetracosanoylamino]-1, 3, 4-hexadecanetriol. The structure of tricho-acorenol was elucidated to be (1S, 4S, 5S, 7R)-1-isopropyl-4, 8-dimethyl-spiro-[4.5]dec-8-en-7-ol on the basis of chemical and spectroscopic evidence.
从科宁毛霉(Trichoderma koningii OUDEMANS)的培养液中分离出了一种新的倍半萜醇,命名为 tricho-acorenol (1),同时分离出的还有苯甲酸甲酯 (2)、环烯醇 (3)、环-(L-Pro-L-Leu) (4)、4-羟基苯乙醇 (5)、尿嘧啶 (7) 和一种神经酰胺 (6)。通过使用离子喷雾质谱(ISI-MS),并将旋光度和 1H-NMR 数据与 (2S,3S,4R)-2-[(2R)-2-羟基二十四碳酰氨基]-1,3,4-十八烷三醇的数据进行比较,确定了神经酰胺 (6) 为 (2S,3S,4R)-2-[(2R)-2-羟基二十四碳酰氨基]-1,3,4-十八烷三醇。根据化学和光谱证据,阐明了 tricho-acorenol 的结构为 (1S,4S,5S,7R)-1-异丙基-4,8-二甲基-螺-[4.5]癸-8-烯-7-醇。