Centro de Investigacións Científicas Avanzadas (CICA) e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain.
Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain.
Mar Drugs. 2019 Jul 16;17(7):416. doi: 10.3390/md17070416.
Two new spongian furanoditerpenes, 3β-hydroxyspongia-13(16),14-dien-2-one () and 19-dehydroxy-spongian diterpene 17 (), along with five known terpenes, the spongian furanoditerpenes 9-nor-3-hydroxyspongia-3,13(16),14-trien-2-one (), 3β,19 dihydroxyspongia-13(16),14-dien-2-one (epispongiadiol) () and spongian diterpene 17 (), the furanoditerpene ambliol C (), and the sesterterpene scalarin (), were isolated from the methanolic extract of the sponge , collected in the Mexican Caribbean. The planar structures of the new compounds were elucidated by 1D/2D NMR and IR spectroscopic analysis, high resolution electrospray mass spectrometry (HRESIMS), and comparison of their spectral data with those reported in the literature. Absolute configurations were determined by comparison of the experimental electronic circular dichroism (ECD) spectrum with those calculated by time-dependent density functional theory (TDDFT). Compounds , , and displayed weak cytotoxic activity against different human tumour cell lines.
两种新的海绵呋喃二萜，3β-羟基海绵-13(16),14-二烯-2-酮()和 19-去羟基海绵二萜 17()，以及五种已知的萜类化合物，海绵呋喃二萜 9-去羟基-3-羟基海绵-3,13(16),14-三烯-2-酮()、3β,19 二羟基海绵-13(16),14-二烯-2-酮(epispongiadiol)()和海绵二萜 17()、呋喃二萜 ambliol C()和倍半萜 scalarin()，从墨西哥加勒比地区采集的海绵中甲醇提取物中分离得到。通过 1D/2D NMR 和 IR 光谱分析、高分辨电喷雾质谱 (HRESIMS) 以及与文献报道的光谱数据进行比较，确定了新化合物的平面结构。通过比较实验电子圆二色性 (ECD)光谱与通过时间相关密度泛函理论 (TDDFT)计算的光谱，确定了绝对构型。化合物、和对不同的人类肿瘤细胞系表现出较弱的细胞毒性活性。
