塞法利维林A-D,来自Cephalotaxus oliveri的四种新线原Mast
Chunyu Jiang1, Jiayi Tan1, Yi Liu1
1Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PR China.
Fitoterapia
|May 27, 2024
概括
从Cephalotaxus oliveri.中分离出了四种新型的线原体,即Cephaliverins A-D,这些线原体来自于Cephalotaxus oliveri. 一些化合物对肝 (HepG2) 和肺 (A549) 癌细胞系表现出适度的抗瘤活性.
科学领域:
- 植物化学 植物化学
- 自然产品 化学 化学
- 药用化学 医学化学
背景情况:
- 塞法洛塔克苏斯 (Cephalotaxus) 属是生物活性天然产品的已知来源.
- 灵是一种多样化的类型的化合物,具有广泛的生物活动.
- 头杆骨 (Cephalotaxus oliveri Mast) 是一个巨型的动物. 它的化学成分尚未得到广泛的研究.
研究的目的:
- 从Cephalotaxus oliveri中分离和表征新的线原体.
- 评估隔离化合物的抗瘤潜力.
- 为了解Cephalotaxus物种的化学多样性作出贡献.
主要方法:
- 使用色谱技术分离化合物.
- 使用高分辨率电喷射电离质谱法 (HR-ESI-MS) 和核磁共振 (NMR) 谱法阐明结构.
- 通过电子循环二元化 (ECD) 比较来确定绝对配置.
主要成果:
- 确定了四种新型的线原体,称为cephaliverins A-D (1-4).
- 另外,还分离和鉴定了7种已知的类类型 (5-11).
- 塞法利维林A (1),赫佩托醇 (5) 和赫狄醇A (6) 对HepG2 (肝细胞癌) 和A549 (非小细胞肺癌) 细胞系表现出适度的抗瘤活性.
结论:
- 对Cephalotaxus oliveri的植物化学研究产生了新的干结构.
- 已分离的基素具有作为抗癌剂的潜力,需要进一步研究.
- 这项研究扩大了Cephalotaxus属对质多样性和生物活性的知识.
相关概念视频
Naming Enantiomers
The naming of enantiomers employs the Cahn–Ingold–Prelog rules that involve assigning priorities to different substituent groups at a chiral center. Each enantiomer, being a distinct molecule, is assigned a unique name by the Cahn–Ingold–Prelog (CIP) rules, also called the R–S system. The prefix R- or S- attached to the chiral centers in an enantiomer is dependent on the spatial arrangement of the four substituents on the chiral center. The R–S system essentially comprises three steps:...
Stereoisomerism of Cyclic Compounds
In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
Preparation of Diols and Pinacol Rearrangement
Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
Five-Membered Heterocyclic Aromatic Compounds: Overview
Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom, respectively.
Opioid Analgesics: Morphine and Other Natural Cogeners
Opioids are a class of drugs that mimic endogenous opioid peptides and act on opioid receptors, and help in pain relief. These compounds are classified as natural, synthetic, or semi-synthetic. Natural opioids, like morphine, codeine, and thebaine, are derived from the opium poppy plant (Papaver somniferum or Papaver album) and are termed opiates. Synthetic opioids are artificial, while semi-synthetic opioids combine natural and synthetic compounds. Morphine, a prototypical opioid, possesses a...
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
Two synthetic agonists of THC,...
Two synthetic agonists of THC,...


