Thalidomide-O-amido-C8-NH2 (TFA) - CAS 1950635-16-1

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BP-100002 100 mg $469 In stock
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Thalidomide-O-amido-C8-NH2 (TFA) is a synthesized compound that incorporates an E3 ligase ligand and a linker used in PROTAC technology.

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Molecular Formula
C25H31F3N4O8
Molecular Weight
572.53

Thalidomide-O-amido-C8-NH2 (TFA)

    • Specification
      • Solubility
        DMSO: ≥ 131 mg/mL
        Storage
        Powder, -20°C, 3 years; 4°C, 2 years; In solvent, -80°C, 6 months; -20°C, 1 month
        IUPAC Name
        N-(8-aminooctyl)-2-[2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindol-4-yl]oxyacetamide;2,2,2-trifluoroacetic acid
        Synonyms
        E3 Ligase Ligand-Linker Conjugates 17
    • Properties
      • InChI Key
        AJVLNIUPDHKOPS-UHFFFAOYSA-N
        InChI
        InChI=1S/C23H30N4O6.C2HF3O2/c24-12-5-3-1-2-4-6-13-25-19(29)14-33-17-9-7-8-15-20(17)23(32)27(22(15)31)16-10-11-18(28)26-21(16)30;3-2(4,5)1(6)7/h7-9,16H,1-6,10-14,24H2,(H,25,29)(H,26,28,30);(H,6,7)
        Canonical SMILES
        C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)OCC(=O)NCCCCCCCCN.C(=O)(C(F)(F)F)O
    • Reference Reading
      • 1. The evidence of politics in trans-fatty acid regulation in Mexico
        Ekow Adom Mensah, Nataliia Gavkalova, Israel Oluwaseyidayo Idris Salud Publica Mex . 2021 Feb 26;63(2, Mar-Abr):268-273. doi: 10.21149/11186.
        According to the World Health Organization, coronary heart disease (CHD)-caused deaths accounted for one-fifth of the total deaths in Mexico in 2017. Researches done in the past have confirmed the association between dietary trans-fatty acids (TFA) and CHD. Dietary TFA are mostly derived from industrial-hydrogenated oils, milk products, and meat fats. This paper is a build on of a policy paper done on international policies for TFA in low-to-middle income countries, using Mexico as the case study. This write up, however, aims to critically analyse the TFA regulation policy process in Mexico, evaluating the strength of evidence proposed and identifying the barriers preventing the usage of the evidence for a TFA regulation policy implementation. Although evidence abounds for TFA regulation policy, lack of effective collaboration and communication among the major actors (researchers, policy-makers, and consumers) in Mexico remains a major setback in its implementation.
        2. Global Surveillance of trans-Fatty Acids
        Hubert W Vesper, Chaoyang Li, Samira Asma, Laura K Cobb Prev Chronic Dis . 2019 Oct 31;16:E147. doi: 10.5888/pcd16.190121.
        Trans-fatty acid (TFA) intake can increase the risk of coronary heart disease (CHD) morbidity and mortality and all-cause mortality. Industrially produced TFAs and ruminant TFAs are the major sources in foods. TFA intake and TFA-attributed CHD mortality vary widely worldwide. Excessive TFA intake is a health threat in high-income countries; however, it is also a threat in low- and middle-income countries (LMICs). Data on TFA intake are scarce in many LMICs and an urgent need exists to monitor TFAs globally. We reviewed global TFA intake and TFA-attributed CHD mortality and current progress toward policy or regulation on elimination of industrially produced TFAs in foods worldwide. Human biological tissues can be used as biomarkers of TFAs because they reflect actual intake from various foods. Measuring blood TFA levels is a direct and reliable method to quantify TFA intake.
        3. Development of a theory-informed questionnaire to assess the acceptability of healthcare interventions
        Mandeep Sekhon, Jill J Francis, Martin Cartwright BMC Health Serv Res . 2022 Mar 1;22(1):279. doi: 10.1186/s12913-022-07577-3.
        Background:The theoretical framework of acceptability (TFA) was developed in response to recommendations that acceptability should be assessed in the design, evaluation and implementation phases of healthcare interventions. The TFA consists of seven component constructs (affective attitude, burden, ethicality, intervention coherence, opportunity costs, perceived effectiveness, and self-efficacy) that can help to identify characteristics of interventions that may be improved. The aim of this study was to develop a generic TFA questionnaire that can be adapted to assess acceptability of any healthcare intervention.Methods:Two intervention-specific acceptability questionnaires based on the TFA were developed using a 5-step pre-validation method for developing patient-reported outcome instruments: 1) item generation; 2) item de-duplication; 3) item reduction and creation; 4) assessment of discriminant content validity against a pre-specified framework (TFA); 5) feedback from key stakeholders. Next, a generic TFA-based questionnaire was developed and applied to assess prospective and retrospective acceptability of the COVID-19 vaccine. A think-aloud method was employed with two samples: 10 participants who self-reported intention to have the COVID-19 vaccine, and 10 participants who self-reported receiving a first dose of the vaccine.Results:1) The item pool contained 138 items, identified from primary papers included in an overview of reviews. 2) There were no duplicate items. 3) 107 items were discarded; 35 new items were created to maximise coverage of the seven TFA constructs. 4) 33 items met criteria for discriminant content validity and were reduced to two intervention-specific acceptability questionnaires, each with eight items. 5) Feedback from key stakeholders resulted in refinement of item wording, which was then adapted to develop a generic TFA-based questionnaire. For prospective and retrospective versions of the questionnaire, no participants identified problems with understanding and answering items reflecting four TFA constructs: affective attitude, burden, perceived effectiveness, opportunity costs. Some participants encountered problems with items reflecting three constructs: ethicality, intervention coherence, self-efficacy.Conclusions:A generic questionnaire for assessing intervention acceptability from the perspectives of intervention recipients was developed using methods for creating participant-reported outcome measures, informed by theory, previous research, and stakeholder input. The questionnaire provides researchers with an adaptable tool to measure acceptability across a range of healthcare interventions.
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