Synthesis of Unsymmetrical Urea Derivatives via PhI(OAc) and Application in Late-Stage Drug Functionalization.

Unsymmetrical urea derivatives are essential structural motifs in a wide array of biologically significant compounds. Despite the well-established methods for synthesizing symmetrical ureas, efficient strategies for the synthesis of unsymmetrical urea derivatives remain limited. In this study, we present a novel approach for the synthesis of unsymmetrical urea derivatives through the coupling of amides and amines.

Clinical outcomes of the management of basal cell carcinomas in individuals aged 90 years and over: a retrospective cohort study.

Background: A retrospective cohort study was undertaken to examine the management of basal cell carcinoma (BCC) in older patients.

Objectives: The aim of this study was to identify subgroups where intervention could be minimized, based on frailty and trends in survival.

Methods: All patients aged ≥ 90 years with histologically confirmed BCC during 2017 and 2018 were included within the study (n = 319).

A SARS-CoV-2 outbreak in a public order and safety training facility in England, June 2021.

Background: The public order and safety (POS) sector remains susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreaks, as workplace attendance is typically compulsory and close physical contact is often needed. Here, we report on a SARS-CoV-2 outbreak with an attack rate of 39% (9/23), which occurred between 19 and 29 June 2021 among a cohort of new POS recruits participating in a mandatory 18-week training programme in England.

Methods: The COVID-OUT (COVID-19 Outbreak investigation to Understand Transmission) study team undertook a multidisciplinary outbreak investigation, including viral surface sampling, workplace environmental assessment, participant viral and antibody testing, and questionnaires, at the two associated training facilities between 5 July and 24 August 2021.

A SARS-CoV-2 outbreak investigation at a storage and distribution centre in England: an assessment of worker- and workplace-related risk factors.

An outbreak of SARS-CoV-2 (1 March to 10 May 2021) with an attack rate of 26.5% among approximately 1150 workers at a storage and distribution centre in England prompted a multidisciplinary outbreak investigation (5 May to 6 August 2021), with the aim of better understanding worker- and workplace-related risk factors for viral transmission in the warehousing sector. Overall, environmental factors (e.