Steiner Till, Schanbacher Franziska, Lorenzen Wolfram, Enke Heike, Janssen Elisabeth M-L, Niedermeyer Timo H J, Gademann Karl
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
Institut für Pharmazie, Freie Universität Berlin, Königin-Luise-Strasse 2+4, 14195 Berlin, Germany.
Data Brief. 2024 Sep 15;57:110914. doi: 10.1016/j.dib.2024.110914. eCollection 2024 Dec.
The UV-vis absorbance spectra, molar extinction coefficients and circular dichroism spectra, as well as NMR and high resolution tandem mass spectrometry spectra were determined for two prominent secondary metabolites from cyanobacteria, namely anabaenopeptin A and anabaenopeptin B. The compounds were extracted from the cyanobacterium CBT929 and purified by flash chromatography and HPLC. Exact amounts of isolated compounds were assessed by quantitative H-NMR with internal calibrant ethyl 4-(dimethylamino)benzoate in DMSO‑ at 298 K with a recycle delay (d1) of 120 s. UV-vis absorbance spectra were recorded in methanol at room temperature. Molar extinction coefficients were determined at 278 nm as 4190 M cm and 2300 M cm in methanol for anabaenopeptin A and anabaenopeptin B, respectively. Circular dichroism spectra and secondary fragmentation mass spectra are also reported.
测定了蓝藻中两种主要次生代谢产物——鱼腥藻肽A和鱼腥藻肽B的紫外可见吸收光谱、摩尔消光系数和圆二色光谱，以及核磁共振和高分辨串联质谱光谱。这些化合物从蓝藻CBT929中提取，并通过快速柱色谱和高效液相色谱进行纯化。在298 K下，使用内标物4-(二甲基氨基)苯甲酸乙酯在DMSO-中通过定量氢核磁共振评估分离化合物的准确含量，循环延迟(d1)为120 s。在室温下于甲醇中记录紫外可见吸收光谱。在甲醇中，鱼腥藻肽A和鱼腥藻肽B在278 nm处的摩尔消光系数分别测定为4190 M cm和2300 M cm。还报道了圆二色光谱和二级碎片质谱。
