Insights into the Biosynthesis of Cyclic Guanidine Alkaloids from Crambeidae Marine Sponges
作者:Siguara B. L. Silva、François Oberhänsli、Marie-Aude Tribalat、Grégory Genta-Jouve、Jean-Louis Teyssié、Marie-Yasmine Dechraoui-Bottein、Jean-François Gallard、Laurent Evanno、Erwan Poupon、Olivier P. Thomas
DOI:10.1002/anie.201809539
日期:2019.1.8
Crambe crambe suggest arginine and fatty acids as precursors in the metabolic pathway of crambescins. A subsequent bio‐inspired approach supported the change of paradigm in the metabolic pathway of cyclic guanidine alkaloids. A large part of the chemical diversity of this family would therefore originate from a tethered Biginelli‐like reaction between C‐2/C‐3 activated fatty acids and a central guanidinylated
在海洋海绵中发现的杰出化学多样性中,存在于克拉贝科物种中的环状胍生物碱特别吸引人,这不仅是由于其独特的化学特征,而且还由于其广泛的生物活性。尽管人们对这些天然产物作为治疗剂的兴趣日益浓厚,但尚未通过实验研究其代谢途径。在地中海海绵Crambe crambe上使用放射性标记的前体进行的异位饲喂实验表明,精氨酸和脂肪酸是crambescins代谢途径中的前体。随后的生物启发方法支持了环胍生物碱代谢途径中范式的改变。