Results 41 to 50 of about 867 (172)

The BAHD Acyltransferase Gene Family: Evolutionary Dynamics, Biochemical Mechanisms, and Roles in Plant Stress Adaptation

Plant Biotechnology Journal, Volume 24, Issue 6, Page 4139-4158, June 2026.
BAHD acyltransferases drive metabolic diversification in plants by coupling conserved catalytic scaffolds with regulatory flexibility, enabling stress adaptation and ecological specialisation. ABSTRACT BAHD acyltransferases constitute one of the most versatile enzyme superfamilies in plants, catalysing the acylation of alcohols, amines, polyamines, and
Muhammad Mubashar Zafar, Qiao Fei, Abdul Razzaq, Ayesha Siddiqua, Ayesha Naveed, M. Nasir Khan, Huma Saleem, Xuefei Jiang   +7 more
wiley   +1 more source

APPLICATIONS OF ENANTIOPURE SULFINIMINE DERIVED CHIRAL AMINE BUILDING BLOCKS FOR THE ASYMMETRIC SYNTHESIS OF TROPANE ALKALOIDS AND CYCLIC CIS BETA-AMINO ACID DERIVATIVES [PDF]

, 2011
Chiral amines are ubiquitous in natural products and are found in many drugs and drug candidates. Enantiopure sulfinimines [RS(O)N=CHR1] are useful chiral building blocks for the stereoselective synthesis of amines and amine derivatives.
Theddu, Naresh
core   +1 more source

A Golgi‐localized N‐methyltransferase and reversible aldo–keto reductases coordinate dual terminal routes in galanthamine biosynthesis

The Plant Journal, Volume 126, Issue 6, June 2026.
Significant Statement This study identifies LaTMT2, a Golgi‐localized N‐methyltransferase, and three reversible aldo–keto reductases (LaAKR1 and LaAKR3) as key enzymes coordinating the dual terminal routes of galanthamine biosynthesis in Leucojum aestivum.
Basanta Lamichhane, Archana Niraula, Natacha Merindol, Sarah‐Eve Gélinas, Patrick Lagüe, Simon Ricard, Hugo Germain, Isabel Desgagné‐Penix   +7 more
wiley   +1 more source

Enantioselective synthesis of tropanes: Brønsted acid catalyzed pseudotransannular desymmetrization [PDF]

, 2020
The enantioselective synthesis of tropanols has been accomplished through chiral phosphoric acid catalyzed pseudotransannular ring opening of 1‐aminocyclohept‐4‐ene‐derived epoxides.
Tomás Tejero, Rodríguez López, Sandra, Uxue Uria, Uria Pujana, Uxue, Uria, Uxue, Merino, Pedro, Sandra Rodriguez, Carrillo Fernández, María Luisa, Reyes Martín, Efraim, Rodriguez, Sandra, Reyes, Efraim, Luisa Carrillo, Jose L. Vicario, Tejero, Tomás, Efraim Reyes, Vicario Hernando, José Luis, Vicario, Jose L., Carrillo, Luisa, Pedro Merino   +18 more
core   +1 more source

Synthesis of Amines for Active Pharmaceutical Ingredients Using the Whole‐Cell Factory Saccharomyces Cerevisae

ChemBioChem, Volume 27, Issue 9, 14 May 2026.
This review highlights advances in engineering Saccharomyces cerevisiae for the sustainable biocatalytic production of pharmaceutically relevant amines, amino alcohols, amino acids, and complex alkaloids. It focuses on strategies to increase productivity, including enhanced enzyme expression, cofactor regeneration, precursor channeling, pathway ...
Natalia Kwiatos, Stephen Ossel, Francesco G. Mutti   +2 more
wiley   +1 more source

New Regio- and Stereo­selective Cascades via Unstabilized Azomethine Ylide Cycloadditions for the Synthesis of Highly Substituted Tropane and Indolizidine Frameworks [PDF]

, 2016
Multisubstituted tropanes and indolizidines have been prepared with high regio- and stereo­selectivity by the [3+2] cycloaddition of unstabilized azo­methine ylides generated from readily prepared trimethylsilyl-substituted 1,2-dihydro­pyridines via ...
Robert G. Bergman (1323120), Jonathan A. Ellman, Mercado, Brandon Q, Tobias Knecht (3124821), Jonathan A. Ellman (610362), Ellman, Jonathan A, Shuming Chen (1590061), Brandon Q. Mercado, Vlad Bacauanu, Bacauanu, Vlad, Robert G. Bergman, Knecht, Tobias, Bergman, Robert G, Vlad Bacauanu (1819399), Chen, Shuming, Brandon Q. Mercado (1668904), Shuming Chen, Tobias Knecht   +17 more
core   +1 more source

Cyrene Dimethyl Acetal: Potential Alternative Solvent for Pd‐Catalyzed Homogeneous Aminocarbonylation of Iodo(hetero)arene Compounds

ChemPlusChem, Volume 91, Issue 5, May 2026.
Insert text for Table of Contents here. In this research, the synthesis of new Cyrene derivatives (Cyrene dimethyl acetal and Cyrene diethyl acetal) was accomplished, and the investigation of their physicochemical properties was completed. It was also shown after a detailed optimization study that Cyrene dimethyl acetal could be an appropriate ...
Attila Takács, Nuray Uzunlu Ince, Zoltán Medgyesi, Huda Hamed, László Kollár, Bence Mihalovics, László T. Mika   +6 more
wiley   +1 more source

Differential Pulse Voltammetric Analysis of the New Psychoactive Drug 3β‐(4‐Fluorobenzoyloxy)tropane (fluorotropacocaine)

Electroanalysis, Volume 38, Issue 5, May 2026.
First voltammetric characterization of fluorotropacocaine and development of a selective DPV method for real‐sample analysis. A Design of Experiments (DoE)‐optimized Florisil‐SPE cleanup enables up to 50× enrichment and sensitive detection in urine, with high selectivity against excipients, endogenous components, and co‐occurring new psychoactive ...
Giancarla Alberti, Stefano Protti, Alessandra Bonanni, Azzurra Naso, Daniele Merli   +4 more
wiley   +1 more source

Asymmetric Induction in C-Alkylation of Tropane-Derived Enamines: Congruence Between Computation and Experiment [PDF]

, 2017
Quantum chemical studies of C-ethylation of 1-methyl- and 1,4,4-trimethyl-tropane-derived enamines predict good (89:11 er, B3LYP) and high (98:2 er, B3LYP) levels, respectively, of asymmetric induction in the resulting α-alkylated aldehydes.
Heinrich-K. A. Rudy, Hodgson, David, Yifei Li, Paton, R, Kelvin E. Jackson, Rudy, H-KA, Ben Le Neve-Foster, Amber L. Thompson, Hodgson, DM, Asma Khurshid, Robert S. Paton, Charlton, A, Li, Y, Thompson, AL, Le Neve-Foster, B, David. M. Hodgson, Jackson, KE, Andrew Charlton, Khurshid, A   +18 more
core   +2 more sources

Promoting Corn Stover Degradation via Sequential Processing of Steam Explosion and Lactic Acid Bacteria‐Assisted Ensilage

Food and Energy Security, Volume 15, Issue 3, May/June 2026.
ABSTRACT Efficient utilization of corn stover is essential for enhancing the sustainability of livestock feed. However, its high lignocellulose content limits digestibility and nutritional value. Steam explosion technology, an emerging pretreatment method, has shown promise in food processing for its ability to break down the natural structural ...
Xuejiao Yin, Yuchun Xie, Jiqiao Xia, Yahui Liang, Tao Jia, Kexin Qian, Chao Wang, Mingyue Li, Yaozhi Zhang, Fangxiang Wu, Junping Feng, Li Zhang, Chenghao Ji, Kexing Hao, Yong Wang, Changqing Li   +15 more
wiley   +1 more source