Dynamic kinetic resolution (DKR) has emerged as an elegant and powerful tool for enantioselective synthesis, enabling the transformation of racemic compounds into enantiomerically enriched products with theoretically quantitative yields. Despite its widespread success, the dynamic kinetic asymmetric C-O cross-coupling has presented significant challenges and remains unexplored. In this study, we report a dynamic kinetic asymmetric C-O cross-coupling of oximes and phenols via copper/BOX-catalysed enantioselective O-arylation with diaryliodonium salts.
View Article and Find Full Text PDFBackground: Isavuconazole has been used to treat invasive fungal infections, however, it is unclear whether the efficacy of isavuconazole is superior to that of voriconazole. The purpose of this meta-analysis was to assess the efficacy and safety of isavuconazole compared to voriconazole in treating invasive fungal infections.
Methods: Electronic databases, including PubMed, EMBASE, Cochrane Library, and Web of Science, were searched to identify relevant studies.
The construction of a quality control system for respiratory medicine is of great significance for improving the quality and homogenization of the diagnosis and treatment of respiratory diseases. The national respiratory quality control work conducted by the China National Respiratory Medicine Quality Control Center was summarized.
View Article and Find Full Text PDFAlthough persistent or recurrent COVID-19 infection is well described in some immunosuppressed patient cohort, to date, there have been no reports of this phenomenon in the context of repeatedly negative SARS-CoV-2 testing in the upper respiratory tract. We reported six patients with follicular lymphoma who developed recurrent symptomatic COVID-19 infection. They tested persistently negative for SARS-CoV-2 on pharyngeal swabs and ultimately confirmed by bronchoalveolar lavage fluid metagenomics next-generation sequencing.
View Article and Find Full Text PDFSci Bull (Beijing)
November 2021
The pandemic due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiological agent of coronavirus disease 2019 (COVID-19), has caused immense global disruption. With the rapid accumulation of SARS-CoV-2 genome sequences, however, thousands of genomic variants of SARS-CoV-2 are now publicly available. To improve the tracing of the viral genomes' evolution during the development of the pandemic, we analyzed single nucleotide variants (SNVs) in 121,618 high-quality SARS-CoV-2 genomes.
View Article and Find Full Text PDFBackground: Invasive mycoses are serious infections with high mortality and increasing incidence. Voriconazole, an important drug to treat invasive mycosis, is metabolized mainly by the cytochrome P450 family 2 subfamily C member 19 enzyme (CYP2C19) and is affected by the genotypes of CYP2C19.
Objective: We reviewed studies on how genotypes affect the pharmacokinetics and pharmacodynamics of voriconazole, and attempted to determine a method to decide on dosage adjustments based on genotypes, after which, the main characteristic of voriconazole was clarified in details.