Isolation, Synthesis, and Structure–Activity Relationship Study on Daphnane and Tigliane Diterpenes as HIV Latency-Reversing Agents
作者:Ahmed H. H. El-Desoky、Keisuke Eguchi、Naoki Kishimoto、Toshifumi Asano、Hikaru Kato、Yuki Hitora、Shunsuke Kotani、Teruya Nakamura、Soken Tsuchiya、Teppei Kawahara、Masato Watanabe、Mikiyo Wada、Makoto Nakajima、Takashi Watanabe、Shogo Misumi、Sachiko Tsukamoto
DOI:10.1021/acs.jmedchem.1c01973
日期:2022.2.24
17 known diterpenes isolated from S. chamaejasme L. and Wikstroemia retusa A.Gray. Among these, gnidimacrin (4), stelleralide A (5), and wikstroelide A (20) were highly potent, with EC50 values of 0.14, 0.33, and 0.39 nM, respectively. The structure–activity relationship (SAR) was investigated using 20 natural and eight synthetic diterpenes. This is the first SAR study on natural daphnane and tigliane
三种新的二萜,stellejasmins A ( 1 ) 和 B ( 2 ) 和 12 - O -benzoylphorbol-13 - heptanoate ( 3 ),从Stellera chamaejasme L.的根中分离出来。1-3的结构通过广泛的 NMR 和质谱分析。化合物1和2是在瑞香和梯香二萜家族中在 C-2 处含有羟基的第一个衍生物。1中氯原子的存在在植物代谢物中是独一无二的。化合物3具有奇数酰基,这在生物合成上是显着的。用从S. chamaejasme L. 和Wikstroemia retusa A.Gray分离的 1-3 和 17 种已知二萜测试了人类免疫缺陷病毒 (HIV) LTR 驱动的转录活性。其中,gnidimacrin ( 4 )、stelleralide A ( 5 ) 和 wikstroelide A ( 20 ) 是高效的,EC 50值分别为 0.14、0