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Structure-guided mining of stereoselective reductive aminases for biocatalytic stereodivergent synthesis of chiral piperidinamine and derivatives.
J Biotechnol
January 2025
Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China; The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. Electronic address:
Chiral azacyclic amine derivatives occupy a vital role of nitrogen-containing compounds, due to serve as foundational motifs in numerous pharmaceuticals and bioactive substances. Novel complementary enantioselective reductive aminases IRED9 and IRED11 were unveiled through comprehensive gene mining from Streptomyces viridochromogenes and Micromonospora echinaurantiaca, respectively, which both demonstrated enantiomeric excess (ee) values and conversion ratio up to 99% towards N-Boc-3-pyridinone (NBPO) and cyclopropylamine. IRED9 exhibited the highest activity at pH 8.
View Article and Find Full Text PDFEngineering silica nanocoated whole-cell asymmetric biocatalyst for efficient preparation of a key chiral intermediate of (S)-Rivastigmine.
J Biotechnol
January 2025
Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China. Electronic address:
In our previous study, the whole cells containing an aldo-keto reductase (yhdN) and glucose dehydrogenase (GDH) were constructed and applied in a stereoselective carbonyl reduction reaction to prepare (S)-NEMCA-HEPE, being a key chiral intermediate of (S)-Rivastigmine which is widely prescribed for the treatment of Alzheimer's disease. Although the conversion and enantiomeric excess (e.e.
View Article and Find Full Text PDFStructure-based discovery of novel diarylpyrimidines as potent and selective Non-Nucleoside reverse transcriptase inhibitors: From CH(CN)-Biphenyl-Diarylpyrimidines to CNNH-Biphenyl-Diarylpyrimidines.
Eur J Med Chem
January 2025
Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China; Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China; Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China; Institute of Flow Chemistry and Engineering, School of Chemistry and Materials, Jiangxi Normal University, Nanchang, 330022, China. Electronic address:
In order to enhance the anti-HIV-1 potency and selectivity of the previously reported compound 3 (EC = 27 nM, SI = 1361), a series of novel biphenyl-diarylpyrimidine derivatives were developed by employing structure-based drug design strategy. Among these derivatives, compound M44 demonstrated the most potent inhibitory activity against wild-type (WT) HIV-1 as well as five drug-resistant mutants (EC = 5-148 nM), which were 5-173 times more potent than that of 3 (EC = 27-9810 nM). Furthermore, this analogue exhibited approximately 11-fold lower cytotoxicity (CC = 54 μM) than that of etravirine and rilpivirine.
View Article and Find Full Text PDFMetal Bis(acyclic diaminocarbene)-Derived Homochiral Organometallic Frameworks: Synthesis and Asymmetric Catalytic Application.
Inorg Chem
January 2025
College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.
As an indispensable member of the reticular material family, metal-carbon-based organometallic frameworks (OMFs) remain largely underexplored, and no chiral OMFs (COMFs) have been reported thus far. Herein, we first report the construction of COMFs from a Pd-isocyanide OMF via nucleophilic addition to the Pd-isocyanide moiety with optically pure amines. The obtained Pd-bis(acyclic diaminocarbene) (Pd-BADC)-derived chiral OMFs display excellent applicability and can be reusable chiral catalysts to highly promote asymmetric Strecker and Suzuki-Miyaura cross-coupling reactions in a heterogeneous way.
View Article and Find Full Text PDFChemoselectivity in Pd-Based Dyotropic Rearrangement: Development and Application in Total Synthesis of Pheromones.
J Am Chem Soc
January 2025
Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, CH-1015 Lausanne, Switzerland.
In the dyotropic rearrangement of molecules with semiflexible structures, characterized by a freely rotating static C-C bond, the formation of a mixture of products is common due to the coexistence of several energetically comparable conformers. Herein, we report that it is possible to modulate the shifting groups by adjusting the metal's coordination sphere in Pd-based dyotropic rearrangement. In the presence of a catalytic amount of Pd(II) salt, the reaction of γ-hydroxyalkenes or γ,δ-dihydroxyalkenes with Selectfluor affords fluorinated tetrahydropyranols or 6,8-dioxabicyclo[3.
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