20689-02-5Relevant academic research and scientific papers
Design, synthesis and pharmacological evaluation of omeprazole-like agents with anti-inflammatory activity
El-Nezhawy, Ahmed O.H.,Biuomy, Ayman R.,Hassan, Fatma S.,Ismaiel, Ayman K.,Omar, Hany A.
, p. 1661 - 1670 (2013/05/09)
A new series of novel benzimidazole derivatives containing substituted pyrid-2-yl moiety and polyhydroxy sugar conjugated to the N-benzimidazole moiety has been synthesized and evaluated as orally bioavailable anti-inflammatory agents with anti-ulcerogenic activity. The anti-inflammatory and anti-ulcerogenic activities of these compounds were compared to diclofenac and omeprazole, respectively. In carrageenan-induced paw oedema assay, 2-methyl-N-((3,4-dimethoxypyridin-2-yl)methyl)-1H-benzimidazol-5-amine (12d) and 1-(1,2,3,5-tetrahydroxy-α-d-mannofuranose)-5-(((3,4-dimethoxypyridin-2yl) methyl)amino)-2-methyl-1H-benzimidazole (15d) displayed dose-dependent anti-inflammatory activities by decreasing the inflammation by 62% and 72%, respectively which is comparable to that of diclofenac (73%). In contrast to diclofenac, the anti-inflammatory activity of these compounds was not only free from any side effects on the gastric mucosa but also showed significant anti-ulcerogenic activity in rat pyloric ligation and ethanol-induced gastric ulcer models similar to that of omeprazole. Together, these findings suggest that 12d and 15d are potent anti-inflammatory agents with concurrent anti-ulcerogenic activity and support its clinical promise as a component of therapeutic strategies for inflammation, for which the gastric side effects are always a major limitation.
Double reductive amination and selective strecker reaction of a D-lyxaric aldehyde: Synthesis of diversely functionalized 3,4,5-trihydroxypiperidines
Matassini, Camilla,Mirabella, Stefania,Goti, Andrea,Cardona, Francesca
, p. 3920 - 3924 (2012/09/08)
A D-mannose-derived aldehyde with the D-lyxo configuration is a versatile key intermediate to functionally and stereochemically diversified piperidines. It allowed the synthesis of natural 3,4,5-trihydroxypiperidines and new analogs through a double reductive amination strategy and the synthesis of novel 2-cyanotrihydroxypiperidines through a highly regio-and diastereoselective Strecker reaction.
Chemoenzymatic synthesis of C8-modified sialic acids and related α2-3- and α2-6-linked sialosides
Yu, Hai,Cao, Hongzhi,Tiwari, Vinod Kumar,Li, Yanhong,Chen, Xi
supporting information; experimental part, p. 5037 - 5040 (2011/10/09)
Naturally occurring 8-O-methylated sialic acids, including 8-O-methyl-N-acetylneuraminic acid and 8-O-methyl-N-glycolylneuraminic acid, along with 8-O-methyl-2-keto-3-deoxy-d-glycero-d-galacto-nonulosonic acid (Kdn8Me) and 8-deoxy-Kdn were synthesized fro
Stereoselective syntheses of polyhydroxylated azepane derivatives from sugar-based epoxyamides. Part 1: Synthesis from d-mannose
Ona, Noe,Romero, Antonio,Assiego, Carmen,Bello, Claudia,Vogel, Pierre,Pino-Gonzalez, M. Soledad
experimental part, p. 2092 - 2099 (2010/12/20)
An approach to the synthesis of polyhydroxyazepane derivatives from sugar-based epoxyamides or epoxyalcohols, in which the total regioselective epoxide opening by nitrogen nucleophiles is the key step, is described. Thus, novel polyhydroxyazepane carboxamides and aminomethyl polyhydroxyazepanes, with potential pharmacological interest, are synthesized from diacetone d-mannose. Configurational assignments of the obtained products were determined.
An improved synthesis of a key intermediate for (+)-biotin from d-mannose
Chen, Fen-Er,Zhao, Jian-Feng,Xiong, Fang-Jun,Xie, Bin,Zhang, Ping
, p. 2461 - 2464 (2008/02/12)
An efficient and reproducible process for the synthesis of methyl 2,3,4,5-tetradeoxy-7,8-O-isopropylidene-d-arabino-nanonate (2), a key intermediate in the total synthesis of (+)-biotin (1), starting from readily available d-mannose is described. The cruc
Chemoenzymatic synthesis of [3,9-13C]-labeled NeuAc and KDN
Sato, Ken-Ichi,Akai, Shoji,Hiroshima, Toshiyuki,Aoki, Hidenori,Sakuma, Mayumi,Suzuki, Ken-Ju
, p. 3513 - 3516 (2007/10/03)
The chemoenzymatic synthesis of 13C-labeled sialic acid (NeuAc) and 3-deoxy-D-glycero-D-galacto-2-nonulosonic acid (KDN) as useful molecular probes for studying the conformation of sialyl or KDN oligosaccharides attached to proteins was perform
A new universal solid support for oligonucleotide synthesis
Azhayev, Alex V.
, p. 787 - 800 (2007/10/03)
Starting from 2,3:5,6-di-0-isopropylidene-α-D-mannofuranose, benzyl 5,6-ditrifluoroacetamido-5,6-dideoxy-2-0-(4,4'-dimethoxytrityl)-α-D-mannofuranose was prepared and attached to a controlled pore glass to generate a new universal solid support for oligon
A Synthetic Approach to the Squalestatins and Zaragozic Acids: Introduction of the C5 Stereocentre via an Ester-Enolate Claisen Rearrangement. The X-Ray Crystal Structure of an Intermediate
Gable, Robert W.,McVinish, Leasa M.,Rizzacasa, Mark A.
, p. 1537 - 1544 (2007/10/02)
In an overall plan to synthesize the anti-cholesterol agents the squalestatins and zaragozic acids, introduction of the C5 stereochemistry was achieved via an Ireland-Claisen rearrangement of the allyl ester (7) followed by methylation, which gives the es
Synthese von (+)-Aspicilin mit Bausteinen aus nachwachsenden Rohstoffen
Quinkert, Gerhard,Fernholz, Erhard,Eckes, Peter,Neumann, Doris,Duerner, Gerd
, p. 1753 - 1786 (2007/10/02)
The 18-membered lichen macrolide (+)-aspicilin (1) is easily built up from compounds 14, 16, 3, and 24 following the C3 + C7 + C6 +C2 = C18 pattern (see Schemes).The synthesis requires 15 steps and gives 1 in 13percent overall yield from D-mannose (2).The
