Exploration of novel chiral pharmaceutical candidates is motivation to immersive efforts among synthetic chemists. Achieving skeletal construction and chiral diversity in a highly efficient manner is a momentous goal in the chemical society. Unfortunately, current methods for chiral induction focus primarily on a specific site. Herein, we realized the asymmetric chain-walking arylation of alkenyl alcohols for the construction of multisite tertiary and quaternary stereocenters in high yields and enantioselectivity. This new operation-friendly strategy carries substantial potential for future industrialization.
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http://dx.doi.org/10.1073/pnas.2408541121 | DOI Listing |
BMC Health Serv Res
January 2025
School of Pharmacy and Biomolecular Sciences (PBS), Royal College of Surgeons in Ireland (RCSI), 1st Floor Ardilaun House Block B, 111 St Stephen's Green, Dublin 2, Ireland.
Background: The advantages of electronic health records (EHRs) are well-documented regarding the process of care, enhanced data accessibility and cost savings. However, EHR design can also contribute to usability challenges, with poorly designed EHRs being implicated in user errors including patient overdoses. Our study seeks to evaluate how EHR design influences both usability and medication safety.
View Article and Find Full Text PDFChemistry
January 2025
Indian Institute of Technology Kharagpur, Chemistry, Paschim Midnapore, 721302, Kharagpur, INDIA.
All-carbon quaternary and tertiary stereocenters connected at the C2-position of functionalizable C3-alkylated indole nucleus are commonly occurring frameworks found in many indole alkaloids of medicinal importance. Their direct access is scarcely reported, a long-standing problem, and developing a unique yet simple method can pave the pathway to an entirely different retrosynthetic route for the total synthesis of these alkaloids. Herein, this problem is addressed by developing an unprecedented branch-selective allylation strategy employing a broad range of structurally and electronically different 3-alkenyl-indoles and allylboronic acids.
View Article and Find Full Text PDFJACC Adv
November 2024
Inova Schar Heart and Vascular, Inova Fairfax Medical Campus, Falls Church, Virginia, USA.
While there has been a proliferation of training and practice paradigms in the realm of noncoronary interventions, coronary disease remains the predominant pathology necessitating interventional cardiology expertise. The landscape of coronary disease has also experienced a significant transformation due to rapidly evolving technologies, clinical application of mechanical circulatory support and other device innovations, and increasing acuity and complexity of patients. The modern interventional cardiologist is subject to challenges including decreasing coronary procedural volume, need to maintain clinical and financial productivity, and often also requirements of continued scholastic pursuit.
View Article and Find Full Text PDFJ Am Chem Soc
December 2024
State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China.
Catalytic asymmetric transformation of donor-acceptor cyclopropanes (DACs) has been proven to be a highly valuable and robust strategy to construct diverse types of enantioenriched molecules. However, the use of 1,1,2,2-tetrasubstituted DACs to form products bearing quaternary stereocenters remains a long-term unsolved challenge. Here, we report the copper-catalyzed asymmetric aminative ring opening of tetrasubstituted alkynyl DACs that delivers a myriad of α-tertiary amines with high levels of enantioselectivities.
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