Two goitrogenic 1,3-oxazolidine-2-thione derivatives from Brassicales taxa: Challenging identification, occurrence and immunomodulatory effects
作者:Niko S. Radulović、Milica M. Todorovska、Dragan B. Zlatković、Nikola M. Stojanović、Pavle J. Randjelović
DOI:10.1016/j.fct.2017.10.005
日期:2017.12
Serbian Brassicales taxa. The stereochemistry of 5-phenyl-1,3-oxazolidine-2-thione was inferred from nuclear magnetic resonance experiments with a chiral lanthanide-shift reagent, employed in this work for the first time for this type of compounds. Unexpectedly, during gas chromatography, 5-phenyl-1,3-oxazolidine-2-thione underwent an unreported thermal core isomerization (1,3-oxazolidine-2-thione to
1,3-恶唑烷-2-硫酮衍生物是与芥子油苷相关的食品成分,已知可赋予某些十字花科蔬菜以(甲状腺)毒性。在这项工作中,5,5-二甲基-1,3-恶唑烷-2-硫酮和( - ) - (- [R)-5-苯基-1,3-恶唑烷-2-硫酮,已知goitrogens,从分离葶金莲Rochel(十字花科)和黄木犀草L.(Resedaceae)和分别被完全光谱表征。随后,在总共78个经筛选的塞尔维亚小菜花类群中,在另外6个类群中证实了2,1,3-恶唑烷-2-硫酮的出现。5-苯基-1,3-恶唑烷-2-硫酮的立体化学是通过手性镧系转移试剂的核磁共振实验推断出来的,这项工作是首次针对此类化合物使用的。出乎意料的是,在气相色谱法中,5-苯基-1,3-恶唑烷-2-硫酮经历了未报告的热核异构化(1,3-恶唑烷-2-硫酮变为1,3-噻唑烷-2-一)。测试了这些促甲状腺激素的挥发性芥子油苷产物对大鼠巨噬细胞生存力的影响(三种测