作者:Satoshi NAKAHARA、Miyako KUSANO、Shozo FUJIOKA、Atsumi SHIMADA、Yasuo KIMURA
DOI:10.1271/bbb.68.257
日期:2004.1
New acetylenic nematicidal compound, penipratynolene (1), methy (2′R)-4-(2′-hydroxy-3′-butynoxy)benzoate, together with two known compounds, 6-methoxycarbonylpicolinic acid (2) and 2,6-pyridinedicarboxylic acid (3), were isolated from the culture filtrate of Penicillium bilaiae Chalabuda. The structures of 1–3 were established by spectroscopic methods. The absolute configuration of 1 was confirmed by using a modified version of Mosher’s method. Compounds 1–3 showed nematicidal activity of 77%, 52%, and 98%, respectively, by a bioassay at 300 mg/l with the root-lesion nematode Pratylenchus penetrans.
从 Chalabuda bilaiae 青霉菌的培养滤液中分离出了新的乙炔类杀线虫化合物 Penipratynolene (1),即 (2′R)-4-(2′-hydroxy-3′-butynoxy)benzoate 甲酯,以及两种已知化合物 6-methoxycarbonylpicolinic acid (2) 和 2,6-pyridinedicarboxylic acid (3)。通过光谱方法确定了 1-3 的结构。1 的绝对构型是通过使用改进版的莫舍尔法确认的。通过对根瘤线虫 Pratylenchus penetrans 进行生物测定,在 300 毫克/升的浓度下,化合物 1-3 的杀线虫活性分别为 77%、52% 和 98%。