Notes

Sophisticated evolutionary reputation felid anelloviruses.
The diazabicyclooctane (DBO) scaffold is the backbone of non-β-lactam-based second generation β-lactamase inhibitors. As part of our efforts, we have synthesized a series of DBO derivatives A1-23 containing amidine substituents at the C2 position of the bicyclic ring. These compounds, alone and in combination with meropenem, were tested against ten bacterial strains for their antibacterial activity in vitro. All compounds did not show antibacterial activity when tested alone (MIC >64 mg/L), however, they exhibited a moderate inhibition activity in the presence of meropenem by lowering its MIC values. The compound A12 proved most potent among the other counterparts against all bacterial species with MIC from less then 0.125 mg/L to 2 mg/L, and is comparable to avibactam against both E. coli strains with a MIC value of less then 0.125 mg/L.The efficient synthesis of two new stereoisomeric 3-aminocyclooctanetriols and their new halocyclitol derivatives starting from cis,cis-1,3-cyclooctadiene are reported. Reduction of cyclooctene endoperoxide, obtained by photooxygenation of cis,cis-1,3-cyclooctadiene, with zinc yielded a cyclooctene diol followed by acetylation of the hydroxy group, which gave dioldiacetate by OsO4/NMO oxidation. The cyclooctane dioldiacetate prepared was converted to the corresponding cyclic sulfate via the formation of a cyclic sulfite in the presence of catalytic RuO4. The reaction of this cyclic sulfate with a nucleophilic azide followed by the reduction of the azide group provided the target, 3-aminocyclooctanetriol. The second key compound, bromotriol, was prepared by epoxidation of the cyclooctenediol with m-chloroperbenzoic acid followed by hydrolysis with HBr(g) in methanol. Treatment of bromotriol with NaN3 and the reduction of the azide group yielded the other desired 3-aminocyclooctanetriol. Hydrolysis of the epoxides with HCl(g) in methanol gave stereospecifically new chlorocyclooctanetriols.Pyrrolidones are common heterocyclic fragments in various biologically active compounds. Here, a two-step radical-based approach to γ-lactams bearing three to four stereocenters starting from epoxides, N-allylic silylacetamides and TEMPO is reported. The sequence starts with a new tandem nucleophilic substitution/Brook rearrangement/single electron transfer-induced radical oxygenation furnishing orthogonally protected α,γ-dioxygenated N-allylamides with wide scope, mostly good yields, and partly good diastereo- and enantioselectivity for defined combinations of chiral epoxides and chiral amides. This represents a very rare example of an oxidative geminal C-C/C-O difunctionalization next to carbonyl groups. The resulting dioxygenated allylic amides are subsequently subjected to persistent radical effect-based 5-exo-trig radical cyclization reactions providing functionalized pyrrolidones in high yields as diastereomeric mixtures. They converge to 3,4-trans-γ-lactams by base-mediated equilibration, which can be easily further diversified. Stereochemical models for both reaction types were developed.A novel catalyst-free synthetic approach to 1,2,3-triazolobenzodiazepinones has been developed and optimized. The Ugi reaction of 2-azidobenzaldehyde, various amines, isocyanides, and acids followed by microwave-assisted intramolecular azide-alkyne cycloaddition (IAAC) gave a series of target heterocyclic compounds in moderate to excellent yields. Surprisingly, the normally required ruthenium-based catalysts were found to not affect the IAAC, only making isolation of the target compounds harder while the microwave-assisted catalyst-free conditions were effective for both terminal and non-terminal alkynes.
Studies have shown that Text2Quit and other mobile cessation programs increase quit rates in adult smokers, but the mechanism of effects and user experiences are not well understood.

This study reports on participants' experiences with the program and explores aspects of the program that they liked and disliked.

Self-reported experiences of the program were collected through a follow-up survey conducted one month after enrollment (n=185). Participant responses to open-ended items were dual coded by independent coders.

Overall participants agreed that they liked the program (4.2/5), that the program was helpful (4.1/5) and that they would recommend the program to a friend (4.3/5). Top reasons for liking the program included that it served as a constant reminder of quitting (17.8%), the content (16.7%), the encouragement provided (13.3%), and the on-demand tools (12.2%). Top reasons for disliking the program were message frequency (20.5%), content (7.0%), and the lack of personal interaction (7.0%).

The constancy of messaging was both liked as a reminder and disliked as an annoyance. Future programs might be improved by pre-testing and customizing the content based on user preferences, and by adding in human interactions, while keeping a supportive tone and offering on-demand tools.
The constancy of messaging was both liked as a reminder and disliked as an annoyance. Future programs might be improved by pre-testing and customizing the content based on user preferences, and by adding in human interactions, while keeping a supportive tone and offering on-demand tools.In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Syngenta Agro GmbH submitted a request to the competent national authority in Germany to modify the existing maximum residue levels (MRL) for the active substance cyprodinil in blueberries, cranberries, currants and gooseberries. The data submitted in support of the request were found to be sufficient to derive MRL proposals for blueberries, cranberries, currants and gooseberries. Inflammation inhibitor Adequate analytical methods for enforcement are available to control the residues of cyprodinil on the commodities under consideration at the validated limit of quantification (LOQ) of 0.01 mg/kg. Based on the risk assessment results, EFSA concluded that the uses of cyprodinil on blueberries, cranberries, currants and gooseberries according to the reported agricultural practices will not result in a consumer exposure exceeding the toxicological reference value and therefore is unlikely to present a risk to consumer health.The risk assessment for gamma-cyhalothrin in light of confirmatory data requested following approval in accordance with Article 6(1) of Directive 91/414/EEC and Article 6(f) of Regulation (EC) No 1107/2009 concluded that the long-term risk to wild mammals from the proposed representative uses of gamma-cyhalothrin was not fully addressed. Following further considerations during the decision-making process, the European Commission asked EFSA to update the risk assessment for wild mammals and consider a restriction to the proposed good agricultural practice (GAP). The outcome of the updated peer review of the risk assessment for wild mammals is presented.According to Article 12 of Regulation (EC) No 396/2005, EFSA has reviewed the maximum residue levels (MRLs) currently established at European level for the pesticide active substance cyproconazole. Considering that no application was received to support the renewal of the approval of cyproconazole and considering the expiry date for its approval on 31 May 2021, and that the import tolerances identified were not supported by sufficient data, and are not forming the basis of any existing EU MRLs, but correspond to existing MRLs established by the Codex Alimentarius Commission (codex maximum residue limits; CXLs), the current assessment is limited to CXLs. To assess the occurrence of cyproconazole residues in plants, processed commodities, rotational crops and livestock, EFSA considered the conclusions derived in the framework of Commission Regulation (EC) No 33/2008, as well as the MRLs established by the Codex Alimentarius Commission. Based on the assessment of the available data, EFSA assessed the CXLs and a consumer risk assessment was carried out. Although no apparent risk to consumers was identified, some information required by the regulatory framework was missing. Hence, the consumer risk assessment is considered indicative only and all MRL proposals derived by EFSA still require further consideration by risk managers.In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant UPL Europe Ltd. submitted an application to the competent national authority in Germany (evaluating Member State, EMS) to raise the existing maximum residue level (MRL) to 0.15 mg/kg for the active substance phenmedipham in celeriac. The submitted residue trials are sufficient to derive a tentative MRL of 0.15 mg/kg, pending further investigation of nature of phenmedipham residues in root crops. For this assessment EFSA considered that the available sugar beet metabolism data can be extrapolated to celeriac on a tentative basis. The acceptability of such proposal shall be further considered by risk managers. Adequate analytical methods for enforcement are available to control the residues of phenmedipham in celeriac at the validated limit of quantification (LOQ) of 0.01 mg/kg. Since the current MRL application was submitted before the finalisation of the EU pesticides peer review of the renewal of the approval of phenmedipham, the consumer exposure assessment was performed according to the conclusions on the toxicity of phenmedipham from the first approval under Directive 91/414/EEC. link2 Accordingly, the long-term intake of residues of phenmedipham resulting from the existing and the intended uses does not indicate a risk to consumer health. The present assessment does not consider the data gaps identified in the context of the renewal of the approval of phenmedipham under Regulation (EC) No 1107/2009 which prevented experts to derive toxicological reference values (TRVs) for phenmedipham, to derive the risk assessment residue definition for root crops other than sugar beet and to conclude on the toxicity of relevant metabolites.Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the additive consisting of Propionibacterium freudenreichii ssp. shermanii ATCC PTA-6752 when used as technological additive (acidity regulator) in dry feed at a minimum inclusion level of 2 × 109 colony-forming units (CFU)/kg and in complete or complementary liquid feed for all animal species at a minimum concentration of 1 × 109 CFU/L. No minimum concentration is proposed by the applicant when used in combination with other microbial technological additives. The bacterial species P. freudenreichii is considered by EFSA to be eligible for the qualified presumption of safety approach to safety assessment. As the identity of the strain has been clearly established and it did not show acquired resistance to antibiotics of human and veterinary importance, the use of the strain in animal nutrition is considered safe for the target animals, consumers and the environment. No conclusions can be drawn on the skin/eye irritancy or skin sensitisation potential of the additive, but it should be considered a respiratory sensitiser. Exposure of users by inhalation is likely. No conclusions could be drawn on the efficacy of the additive when used alone as an acidity regulator in feed due to lack of data. The studies provided showed that P. freudenreichii ssp. link3 shermanii ATCC PTA-6752 when used in combination with Ligilactobacillus animalis ATCC PTA-6750 has the potential to act as an acidity regulator. However, the Panel has reservations on the effects of this mixture in practical use conditions.
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