Regiospecific Prenylation of Hydroxyxanthones by a Plant Flavonoid Prenyltransferase
作者:Ruishan Wang、Ridao Chen、Jianhua Li、Xiao Liu、Kebo Xie、Dawei Chen、Ying Peng、Jungui Dai
DOI:10.1021/acs.jnatprod.6b00417
日期:2016.8.26
prenyltransferase with substrate flexibility from Morus alba, is demonstrated. Among the enzymatic products, 2-dimethylallyl-1,3,7-trihydroxyxanthone (3a) effectively attenuated glutamate-induced injury in SK-N-SH neuroblastoma cells. These results suggest a potential approach for the synthesis of bioactive prenylated xanthones by a substrate-relaxed flavonoid prenyltransferase.
C-烯丙基化的氧杂蒽酮是分布在植物和微生物中的具有药理吸引力的专门代谢产物。氧杂蒽的异戊烯基化通常有助于这些化合物的结构多样性和生物活性。然而,有效的氧杂蒽酮的区域特异性异戊烯化仍然具有挑战性。在这项研究中,一些结构上不同的hydroxyxanthones(的的区域专一性异戊烯化3 - 10)由MaIDT,植物类黄酮异戊二烯基转移酶与来自基板的灵活性桑白皮,是证明。在酶促产物中,2-二甲基烯丙基-1,3,7-三羟基黄酮(3a)有效减轻了SK-N-SH神经母细胞瘤细胞中谷氨酸诱导的损伤。这些结果表明通过底物松弛的类黄酮异戊二烯基转移酶合成生物活性的烯丙基化的氧杂蒽的潜在方法。