Pyridine Nucleosides Neopetrosides A and B from a Marine <i>Neopetrosia</i> sp. Sponge. Synthesis of Neopetroside A and Its β-Riboside Analogue
作者:Larisa K. Shubina、Tatyana N. Makarieva、Dmitry V. Yashunsky、Nikolay E. Nifantiev、Vladimir A. Denisenko、Pavel S. Dmitrenok、Sergey A. Dyshlovoy、Sergey N. Fedorov、Vladimir B. Krasokhin、Seung Hun Jeong、Jin Han、Valentin A. Stonik
DOI:10.1021/acs.jnatprod.5b00256
日期:2015.6.26
Neopetrosides A (1) and B (2), new naturally occurring ribosides of nicotinic acid with extremely rare α-N-glycoside linkages and residues of p-hydroxybenzoic and pyrrole-2-carboxylic acids attached to C-5′, were isolated from a marine Neopetrosia sp. sponge. Structures 1 and 2 were determined by NMR and MS methods and confirmed by the synthesis of 1 and its β-riboside analogue (3). Neopetroside A
从中分离出新的天然烟碱A(1)和B(2),一种新的天然烟酸核糖酸,具有极为罕见的α- N-糖苷键和与C-5'相连的对羟基苯甲酸和吡咯-2-羧酸的残基。海洋Neopetrosia SP。海绵。结构1和2通过NMR和MS方法确定,并通过1及其β-核糖类似物(3)的合成得到证实。Neopetroside A(1)上调心肌细胞中的线粒体功能。