Three closely related diketopiperazines, (S)-1-benzyl-6-methylpiperazine-2,5-dione (S)-1a, (S)-1-benzyl-3-methylpiperazine-2,5-dione (S)-1b, and (S)-6-methyl-1-(pentafluorobenzyl)piperazine-2,5-dione (S)-1c, were prepared and screened as potential chiral solvating agents in NMR spectroscopy. The...

The large increase in fluorescence upon binding of five para- and meta-phenyl substituted hydroxy and methoxy derivatives of the Hoechst dye with poly[d(A-T)], d(CGCGAATTCGCG)2, and its corresponding T4-looped 28-mer hairpin was used to monitor the binding by equilibrium titrations and by stoppe...

An efficient iodine-mediated cascade synthesis of 3-aza-bicyclo[3.1.0]hex-2-ene derivatives from easily prepared N-allyl enamines has been developed. The advantages of the reaction include facilitative preparation of substrates 3a–t, good functional group tolerance and transition-metal-free con...

The direct synthesis of (E)- and (Z)-3-allylidene-β-lactams from 3-allyl-3-phenylseleno-β-lactams under mild conditions has been described. 3-Allyl-3-phenylseleno-β-lactams acts as an efficient substrate for in situ oxidation and elimination in one step. This method is simple, convenient, fas...

An ionic liquid, 1-allyl-3-methylimidazolium methyl phosphonate (Amim(MeO)PHO2), was synthesized and used to dissolve and regenerate cellulose under mild conditions. The dissolution mechanism of cellulose in Amim(MeO)PHO2 was investigated by in situ NMR spectroscopy under different conditions. I...

By means of alternating current-electrochemical synthesis novel Cu(I) π-complex of the composition [Cu4(dapt)2Cl4]∙0.38EtOH (dapt – (2Z)-3-allyl-2-(allylimino)-1,3-thiazolidin-4-one was obtained and studied by X-ray single crystal diffraction and IR-spectroscopy. π-Complex crystallizes in the ...

New experiments of cellulose acetylation were performed using the ionic liquid 1-allyl-3-methylimidazolium chloride ([Amim]Cl) as a solvent, at temperatures of 80, 60 and 40 °C. An attempt is done to improve the performance of the reaction by pressurizing the reaction with 80 bar of CO2. The re...

In the present work, seven 1-allyl-3-methylimizodalium carboxylate ionic liquids (ILs), including 1-allyl-3-methylimizodalium formate [Amim][HCOO], acetate [Amim][CH3COO], propionate [Amim][CH3CH2COO], butyrate [Amim][CH3(CH2)2COO], glycollate [Amim][HOCH2COO], lactate [Amim][CH3CHOHCOO]) and be...

K2S2O8 was unprecedentedly used instead of tert-butyl hydroperoxide (TBHP) in Brønsted acid-assisted catalytic strategy for ketonic radical generation, and the first Brønsted acid-catalyzed radical CH functionalization of acetone across unactivated alkenes is presented. In the presence of TsOH a...

Methyl 2,3-di-O-benzoyl-6-deoxy-α-l-galactopyranoside (2) was converted into the 4-deoxy-4-iodo-α-l-gluco derivative 4 by triflate-mediated inversion. Catalytic reduction of 4 gave methyl 2,3-di-O-benzoyl-4,6-dideoxy-α-l-xylo-hexopyranoside (6) and subsequent O-debenzoylation gave methyl 4,6-...

Currently, glioma treatment is limited by two main factors: timely detection at onset or relapse and restriction of drugs by the blood–brain barrier (BBB) from entering the brain and influencing tumor growth. However, a safe BBB-traversing drug delivery system has brought new hope to glioma tre...

Vascular endothelial growth factor (VEGF) has been characterized as a heparin binding angiogenic growth factor displaying high specificity for endothelial cells. It is profoundly accumulated and co-localized with amyloid beta (Aβ) plaques in the brain of Alzheimer’s disease patients. In order ...

Mitochondria are considered the power house of cells where ATP is generated for cellular metabolism, and they also act as a crucial regulator of the intrinsic apoptosis pathway. During ATP synthesis, reactive oxygen species (ROS) are produced as secondary products. Overproduction of ROS can prom...

Ethnopharmacological relevanceBu Shen Yi Sui capsule (BSYSC), based on traditional Chinese formula Liu Wei Di Huang pill, is effective for the treatment of multiple sclerosis (MS) in clinical experience and trials. Our previous studies confirmed that BSYSC had the neuroprotective effect in MS an...

The development and clinical application of immunostimulatory therapy provides us a new and exciting strategy in cancer treatment of which the agents act on crucial receptors. Given the fact that Neuropilin-1(NRP-1) is essential for vascular endothelial growth factor (VEGF) to inhibit LPS-depend...

Cyclosporin A (CsA) is an effective immunosuppressive agent, but its myocardial toxicity limits its widespread and long-term clinical application. In this study, CsA treatment led to damages in myocardial fiber structure, an increase in myocardial fibrosis, and changes in heart size and shape; m...

NRP-1 is an important co-receptor of vascular endothelial growth factor receptor-2 (VEGFR-2). Many reports suggested that NRP-1 might also serve as a separate receptor for VEGF-A165 causing stimulation of tumour growth and metastasis. Therefore, compounds interfering with VEGF-A165/NRP-1 complex...

SummaryAlthough the upregulation of Neuropilin-1 (NRP-1) is associated with many solid tumors, its role in pancreatic neuroendocrine neoplasms (pNEN) has not been well elucidated. The aim of this study was to investigate the role of NRP-1 in improving treatment and determining the prognosis of p...

This work aims to explore the roles and related mechanisms of RNA binding protein Lin28B in gastric cancer cells stemness. We found that Lin28B expression was negatively correlated with the overall survival (OS) of gastric cancer patients, and significantly increased in gastric cancer cells comp...

Others and ours studies have established the promoting roles of NRP-1 (neuropilin-1) in breast cancer, however, the underlying mechanisms by which NRP-1 is regulated are still confused. Here, bioinformatics analysis indicated that RNA binding protein PUM2 could bind to NRP-1 mRNA. Clinical sampl...