The newly synthesized Tamarind 2-Hydroxy-2-Methyl Butyric Acid (THMBA) resin for elimination of hazardous waste metal ions was developed from industrial effluents. Tamarin kernel powder (TKP) has been studied their good sorption properties and found to have potential management. In the laboratory, chemically produced Tamarind-2-hydroxy-2-methyl butyric acid derivative employed Zn2+, Pb2+, Cd2+i...

Aminooxyl sugar derivatives are versatile building blocks for the generation of various glycoconjugates with interesting bioactivities. We report herein a synthetic method for the preparation of orthogonally protected glycoaminooxy acid from methyl α-d-glycopyranoside in 7 steps. The key steps involve the selective protection, O-alkylation and Mitsunobu reaction. Fully deprotected N-oxyamide-li...

Bacoside-A, a major constituent isolated from Bacopa monniera is held in high repute as a potent nerve tonic. Rats were pretreated with Bacoside A (10mg/kg and 20mg/kg body weight) for 21 days. A Parkinsonian model in rats was developed by giving 6-hydroxy dopamine (12μg/2μl in 0.1% ascorbic acidsaline) in the right striatum on 22 day. A significant protection on lipid peroxidation, glutathione...

We report on a diastereoselective synthesis of six derivatives of caffeoyl- and feruloyl-muco-quinic acids. All the muco-quinic acid derivatives were obtained in excellent yield in five steps starting from quinic acid, caffeic acid and ferulic acid. Allyl ether protection of trans-hydroxy cinnamic acids was here introduced to chlorogenic acids synthesis. We show that muco-quinic acid derivative...

3-Acyl-5-( 1 -am inoalkylidene)-4-hydroxy-2 Hpyran-2,6(3 //)-d ione derivatives carrying lipophilic am ino groups were found to be highly potent inhibitors o f photosynthetic electron transport, and bo th the acyl and the am inoalkylidene groups on the pyran ring appeared to be indispensable for high activity. The structural features needed for activity in the 3-acyl-5(l-am inoalkylidene)-4-hyd...

The plant phenolic compounds such as flavonoids, tannins and phenolic acids appeared to be strong antiradical and antioxidant compounds. The number of hydroxy groups and the presence of a 2,3-double bond and orthodiphenolic structure enhance antiradical and antioxidative activity of flavonoids. The glycosylation, blocking the 3-OH group in C-ring, lack of a hydroxy group or the presence of only...

Strains of microorganisms capable of 7alpha-dehydroxylation of chenodeoxycholate were isolated from rat and human feces. All the strains were strictly anaerobic, non-motile, moderately themioresistant Gram-positive rods. They showed some saccharolytic properties with the production of both acid and gas. They were H(2)S-positive but indole-, skatole-, citrate-, catalase-, and oxidase-negative. T...

The oxidation of 2D MXenes jeopardizes their shelf life, both in colloidal dispersions and functional devices. Certain compounds have been shown to effectively mitigate (such as sodium L-ascorbate, ascorbic acid, polyanions), but the nature interaction between these antioxidants MXene remains unknown, which impedes future selection design improved protection. This work systematically examines i...

The title compound, 2C(17)H(13)F(3)N(3)O(+)·SO(4) (2-)·2H(2)O, crystallizes with four independent cations (A, B, C and D) in the asymmetric unit, which is composed of two groups of two cations, one anion and two water mol-ecules (Z' = 2). The dihedral angle between the mean planes of the 4-hydroxy-phenyl and quinolinium groups is 8.9 (7)° in A, 30.1 (6)° in B, 28.8 (8)° in C and 12.8 (1)° in D....