N-hydroxy amides can be found in many naturally occurring and synthetic compounds and are known to act as both strong proton donors and chelators of metal cations. We have initiated studies of peptoids, or N-substituted glycines which contain N-hydroxy amide side chains to investigate the potential effects of these functional groups on peptoid backbone amide rotamer equilibria and local conform...

Calix[4]resorcinarene-based cavitands with a bowl-shaped aromatic cavity are widely used as scaffolds for covalently bound and self-assembled capsules. There are two main categories of calix[4]resorcinarene-based cavitands that are tetrafunctionalized at the upper (wider) rim: one category includes derivatives that have functionalized bridges between pairs of hydroxy groups of the calix[4]resor...

The aim of this study was to synthesize and evaluate anticancer activity 2-hydroxy benzaldehyde 4-hydroxy thiosemicarbazone (2-HBTSc 4-HBTSc) against MCF-7 breast cancer cell line. ligands were prepared characterized by UV vis, IR NMR. MTT assay used assess viability cells. RNA isolation, extraction cDNA synthesis done. Then all groups subjected RT-qPCR using Gene expression specific primers. A...

The 9-phenylthioxanthyl (S-pixyl or S-Px) group has been investigated as a photocleavable protecting group for primary alcohols, and specifically as a 5' hydroxy protecting group for deoxyribonucleosides. Several alcohols, including the four nucleosides with protected exocyclic amino functions, were protected in very good to excellent yield by treatment of 9-chloro-9-phenylthioxanthene 3 in dry...

Secretions from glandular trichomes potentially protect plants against a variety of aggressors. In the tomato clade Solanum genus, wild species produce rich source chemical diversity at leaf surface. Previously, 7-epi-zingiberene produced in several accessions habrochaites was found to confer resistance whiteflies (Bemisia tabaci) and other insect pests. Here, we report identification character...

multiple risk factors are introduced for multiple sclerosis (ms). recent studies have suggested a possible correlation between vitamin d deficiency and an increase risk of ms. this study was therefore undertaken to compare vitamin d levels in new cases of ms and their relatives as healthy controls. seventy five new diagnosed ms patients and 100 matched healthy controls among their relatives wer...

Silybum marianum is a medicinal plant used widely for treating liver diseases. The silymarin, a mixture of three flavolignan isomers namely silybin (1), silydianin (2), and silychristin (3) is an active constituent of the plant. However, silybin containing 1, 4-dioxane ring is the most potent antihepatotoxic agent. In contrast, other isomers do not possess 1, 4-dioxane ring, and thus do not exh...