https://www.selleckchem.com/products/PP242.html The first cationic titanium catalyst system for the intermolecular hydroaminoalkylation of alkenes with various tertiary alkylamines is presented. Corresponding reactions which involve the addition of the α-C-H bond of a tertiary amine across the C-C double bond of an alkene take place at temperatures close to room temperature with excellent regioselectivity to deliver the branched products exclusively. Interestingly, for selected amines, α-C-H bond activation occurs not only at N-methyl but also at N-methylene groups. The COVID-19 pandemic is the most important public health problem in 2020. Millions of people have been infected or died because of the outbreak. We know the common symptoms of the disease such as fever and cough. However, all symptoms and features of COVID-19 are still were not known. We aimed to evaluate the change in lower urinary tract symptoms (LUTS) after COVID-19 in men. We prospectively assessed 94 patients with COVID-19 during hospitalisation. The patients were divided into two groups according to age, that being over and under age 50. IPSS scores of all patients were enrolled. Additionally, we compared the scores with pre-COVID-19 values. LUTS scores were found to be increased in elderly patients. Additionally, the severity of the disease did not correlate with LUTS scores. LUTS may be one of the symptoms of COVID-19 in some patients. Elderly patients with increased LUTS should be evaluated for COVID-19 when the reason unclear. LUTS may be one of the symptoms of COVID-19 in some patients. Elderly patients with increased LUTS should be evaluated for COVID-19 when the reason unclear.SARS-CoV-2 RT-PCR cycle threshold values from 18,803 cases (2 March-4 October) in Madrid define three stages (i) initial ten weeks with sustained reduction in viral load (Ct 23.4-32.3), (ii) stability with low viral loads (Ct 31.9-35.5) in the next nine weeks and (iii) sudden increase with progressive higher viral loa