Results 141 to 150 of about 236,513 (253)

Flavin Catalysts in Organic Synthesis

Angewandte Chemie, EarlyView.
Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley   +2 more sources

Perlolyrine Formation and Isoflavones Hydrolysis During Miso Fermentation Affected by Tryptophan and Tryptamine. [PDF]

J Food Sci
Chen HS, Chiu PC, Tsai YC, Li YJ, Yen MY, Zhan YJ, Chiou RY.   +6 more
europepmc   +1 more source

Tryptophan Metabolism in Digestive and Extra-Digestive Diseases: Mechanisms, Clinical Implications, and Therapeutic Perspectives. [PDF]

Nutrients
Tohumcu E, Puca FS, Tunali V, Cerrito L, Pallozzi M, Stella L, Maestri M, Murace CA, Porcari S, Varca S, Severino A, Gasbarrini A, Ianiro G, Ponziani FR.   +13 more
europepmc   +1 more source

Substrate‐Dependent Crosslinking by the Cytochrome P450 From Aminopyruvatide Biosynthesis

Angewandte Chemie, EarlyView.
Substitutions in the aminopyruvatide precursor peptide altered the C─C linkage formed from a YLY motif by the P450 ApyO to a N─C linkage in a WLY motif. Moreover, constitutional isomers crosslinked by C─C and C─O linkages were formed from YYY or YWY motifs. ABSTRACT Cytochrome P450s catalyze an array of reactions including crosslinking of aromatic side
Chandrashekhar Padhi, Dinh T. Nguyen, Lingyang Zhu, Lide Cha, Jesse W. Wald, Douglas A. Mitchell, Wilfred A. van der Donk   +6 more
wiley   +2 more sources

Tryptophan Supplementation Reduces Schizophrenia-Like Symptoms in Apomorphine Treated Rats: Role of D2, GABA, and Glutamate Receptor Expression. [PDF]

Int J Tryptophan Res
Nawaz S, Ali SB, Afroz R, Ikram H, Khan F, Haleem DJ.   +5 more
europepmc   +1 more source

Electrocatalytic Polarity Inversion of Azlactones: Access to α‐Quaternary Amino Acids with Electron‐Rich SOMOphiles

Angewandte Chemie, EarlyView.
Electrocatalytic polarity inversion of azlactones unlocks their coupling with electron‐rich reaction partners. Triarylamine‐mediated oxidation of the azlactone enolate generates an electrophilic radical intermediate that undergoes selective C4 functionalization with diverse SOMOphiles.
Paula Rodríguez, David Buedo, Alberto Vega‐Peñaloza, Kian Gosling, Stuart C. D. Kennington, Bart Limburg, Xavier Companyó   +6 more
wiley   +2 more sources

Dissecting the Role of Serotonin in Drought Responses of Rocket Plants: From Serotonin Accumulation to Tryptophan-ABA Associations. [PDF]

Physiol Plant
Álvarez-Real S, Munné-Bosch S, Arabia A.   +2 more
europepmc   +1 more source

Synthesis of Large‐ and Medium‐Sized Heterobiaryl Atropisomeric Rings and Atropopeptides by Catalytic Intramolecular SNAr

Angewandte Chemie, EarlyView.
Catalytic, intramolecular N‐heterocycle arylation by nucleophilic aromatic substitution (SNAr) is now available for synthesis of highly strained macrocycles and medium‐sized heterobiaryl atropisomeric rings, including atropopeptides. Key to the approach is the ability to generate a strong base catalytically, taking advantage of base‐embedding ...
Alireza Abbasi Kejani, Paritosh Dey, Nicholas H. Stillman, Daniel M. Andrade, Michal Šimek, Martin Dračínský, Daniel Bím, Paulo H. S. Paioti   +7 more
wiley   +2 more sources

Tryptophan triggers the production of anthranilamide and quinazolinone derivatives in <i>Streptomyces</i> sp. PC4-3. [PDF]

RSC Adv
Pooprasert T, Feliciano MA, Sureram S, Aree T, Leerach N, Chutiwitoonchai N, Tanasupawat S, Yao Y, Liu G, Mahidol C, Ruchirawat S, Kittakoop P.   +11 more
europepmc   +1 more source

Axial Boron Coordination Reconstructs Stereostructure of Cu Single‐Atom Nanozymes for Efficient Water‐Phase Chemical Sensing

Angewandte Chemie, EarlyView.
Sun et al. proposed an axial boron coordination strategy to reconstruct the stereostructure of Cu SAzymes and enable them to serve as efficient laccase mimics for high‐throughput smart sensor array detection of phenolic pollutants in water phases. ABSTRACT Developing single‐atom nanozymes with stereoconfigurations is a new paradigm for biomimetic ...
Qijun Sun, Hongyu Shi, Si Liu, Ziping Li, Yu Yang, Fengwang Li, Wenli Wu, Qiongzheng Hu, Kang Liang   +8 more
wiley   +2 more sources