Results 161 to 170 of about 14,737 (217)

Planar Chirality Directs Enantiospecific Diastereoselectivity in Isocyanide-Based Multicomponent Reactions. [PDF]

ACS Org Inorg Au
Kapsalis M, Fragkiadakis M, Konstantaras I, Froudas KG, Stergiannakos T, Sun R, Benedetti E, Neochoritis CG.   +7 more
europepmc   +1 more source

Analysis of real-world clinical outcomes of perioperative chemotherapy compared to preoperative chemoradiotherapy in esophagogastric adenocarcinoma. [PDF]

Cancer
Oyenuga M, Goyal S, Hannan LM, Emiloju O, Dosunmu GT, Miao R, Gbolahan O, Russell M, Lin J, Switchenko JM, Alese OB.   +10 more
europepmc   +1 more source

Dietary management and feeding considerations of pediatric aerodigestive and upper gastrointestinal motility disorders. [PDF]

J Pediatr Gastroenterol Nutr
El-Chammas K, Jones KB, Arvedson J, Boruta M, Toro-Monjaraz E, Sicolo A, Darbari A, Rosen R, Khlevner J.   +8 more
europepmc   +1 more source

Exploiting Multicomponent Reactions to Drive the Development of Novel Antitubercular Agents: An Overview. [PDF]

ChemMedChem
Nunes D, Moreira R, Perry MJ, Lopes F.
europepmc   +1 more source

UGI review

, 2000
openaire   +1 more source

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Cyclic Imines in Ugi and Ugi-Type Reactions

ACS Combinatorial Science, 2020
Ugi four-component reactions (U-4CRs) are widely recognized as being highly efficient for the synthesis of pseudopeptides. However, the products of these reactions are not so interesting as drug candidates because they are not conformationally restricted enough for a potent interaction with biological targets.
Ahmad Shaabani, Reza Mohammadian, Mohammad Taghi Nazeri   +2 more
exaly   +3 more sources

Insight into the Mechanisms of the Multicomponent Ugi and Ugi–Smiles Reactions by ESI‐MS(/MS)

European Journal of Organic Chemistry, 2014
AbstractThe mechanisms of the Ugi and Ugi–Smiles reactions were investigated by using finely selected reaction conditions that allowed all of the intermediates to be “fish‐out” and characterized by ESI‐MS/MS. New insight into the Ugi and Ugi–Smiles reaction mechanisms is provided without using charge‐tagged reagents.
IACOBUCCI, CLAUDIO, REALE, SAMANTHA, Gal, Jean François, DE ANGELIS, Francesco   +3 more
openaire   +2 more sources

A Diastereoselective Synthesis of Pseudopeptidic Hydantoins by an Ugi/Cyclization/Ugi Sequence

Tetrahedron, 2012
Abstract A diastereoselective synthesis of helix-forming pseudopeptidic hydantoins by an Ugi 4CC/cyclization/reduction/Ugi 4CC sequence of reactions, giving mainly the l -adduct when benzoic acids were used, is described.
María García-Valverde, Tomás Torroba, Stefano Marcaccini   +2 more
exaly   +2 more sources