A new phthalazinone derivative and a new isoflavonoid glycoside from lichen-associated Amycolatopsis sp.
作者:Kai-Xuan Zheng、Yi Jiang、Ju-Xing Jiang、Rong Huang、Jian He、Shao-Hua Wu
DOI:10.1016/j.fitote.2019.04.011
日期:2019.6
A new phthalazinone derivative, named amycophthalazinone A (1), and a new isoflavonoid glycoside, 7-O-methyl-5-O-α-L-rhamnopyranosylgenestein (2), along with an isoflavonoid glycoside, 7-O-α-D-arabinofuranosyl daidzein (3) firstly found from natural sources, and eight known compounds (4-11), were isolated from the culture broth of the lichen-associated Amycolatopsis sp. YIM 130642. The structures of
一种新的酞嗪酮衍生物,称为Amycophthalazinone A(1)和一种新的异黄酮苷7-O-甲基-5-O-α-L-鼠李糖基吡喃糖基配药(2),以及异黄酮苷7-O-α-D首先从天然来源中发现-阿拉伯呋喃糖基大豆苷元(3),并从地衣相关性淀粉样芽孢杆菌(Amycolatopsis sp。)的培养液中分离出八种已知化合物(4-11)。YIM130642。在光谱分析的基础上阐明了新化合物的结构。化合物1是天然存在的酞嗪酮衍生物的第一个实例。通过肉汤微量稀释测定法评估所有化合物对五种致病菌株的抗菌活性。化合物1对金黄色葡萄球菌,伤寒沙门氏菌和白色念珠菌的抑制作用最强,MIC值为32、32和64μg/ mL,