Further new eunicellin-based diterpenoids from the Guangxi Weizhou soft coral Cladiella krempfi
作者:Tong Ru、You-Sheng Cai、Heng Li、Wei Tang、Hong Wang、Yue-Wei Guo
DOI:10.1016/j.fitote.2018.10.012
日期:2018.11
Three new polyoxygenated diterpenes (1, 3 and 4) of eunicellin-type, namely, 8-n-butyryl-litophynol A, 6-keto-litophynol B and 6-epi-litophynol B, respectively, together with two related known ones (2 and 5), were isolated from the soft coral Cladiella krempfi collected off the Weizhou island, Guangxi Zhuang Autonomous Region, China. The structures of the new compounds were elucidated by extensive
eunicellin型的三种新的多氧合二萜(1、3和4),分别是8-正丁酰-邻苯二酚A,6-酮-邻苯二酚B和6-表-邻苯二酚B,以及两个相关的已知的( 2和5)是从广西壮族自治区Wei州岛附近采集的软珊瑚克雷迪菌分离得到的。通过广泛的光谱分析和化学相关性阐明了新化合物的结构。在生物测定中,所有新化合物均显示出中等的抗炎作用。