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Articles 1 - 6 of 6
Full-Text Articles in Chemicals and Drugs
Diisopinocampheylborane Trifluoromethanesulfonate-Mediated Aldol Reactions Using An Aldehyde And An Amide, Camille Parker
Diisopinocampheylborane Trifluoromethanesulfonate-Mediated Aldol Reactions Using An Aldehyde And An Amide, Camille Parker
Honors Theses
Aldol reactions are one of the most powerful reactions in organic chemistry because of the formation of new carbon-carbon bonds. A downside of aldol reactions is that they generate a mix of stereoisomers, therefore a lot of work has gone into developing methods that selectively favor a certain stereoisomer. We report an enatio and diastereoselective diisopinocampheylborane trifluoromethanesulfonate ((Ipc)2BOTf) mediated aldol reaction with an amide and an aldehyde. Traditionally, (Ipc)2BOTf-mediated reactions were not applied to amides, except with the use of strong bases. Here we developed a (Ipc)2BOTf aldol reaction of amides using mild bases …
Synthesis Of Novel Long Chain Unsaturated Fatty Acid Analogs Of Capsaicin, Eli Bettiga
Synthesis Of Novel Long Chain Unsaturated Fatty Acid Analogs Of Capsaicin, Eli Bettiga
Honors Theses
A number of key studies have shown that the natural product capsaicin displays in vitro and in vivo antitumor effects against a variety of cancers, however, both the analgesic and cancer-related therapeutic potential of capsaicin have been limited by its unpleasant pungent side effects and modest potency. N-acyl vanillylamides (N-AVAMs) are a unique class of compounds that are simple side chain modified capsaicin derivatives. Limited structure-activity relationship (SAR) studies of N-AVAMs demonstrated that substitution of the capsaicin side-chain with longer unsaturated fatty acid groups results in non-pungent analogs with improved anti-invasive activity relative to capsaicin. In an effort to ultimately …
The Effects Of Alpha-Tocopherol And Ascorbic Acid On Metastatic Breast Cancer Cells, Scout Treadwell
The Effects Of Alpha-Tocopherol And Ascorbic Acid On Metastatic Breast Cancer Cells, Scout Treadwell
Honors Theses
Breast cancer is a multifaceted, complex disease that affects hundreds of thousands of patients every year. Although there has a been a decline in the mortality rate of this disease, it is still vital to investigate and discover new possible treatments. One area of research involves the generation of reactive oxygen species (ROS) in cancer cells and the possibility of ROS-induced apoptosis. Antioxidants such as Vitamin C and Vitamin E have been shown to serve as pro-oxidants. Instead of detoxifying the cell from damaging ROS, these compounds can stimulate ROS production, triggering an apoptotic cascade in the cell. In this …
Fluorometric Characterization Of A Methylene Blue Derivative Sensitive To Reactive Oxygen Species (Ros), Matthew Weeks
Fluorometric Characterization Of A Methylene Blue Derivative Sensitive To Reactive Oxygen Species (Ros), Matthew Weeks
Honors Theses
Methylene blue (MB) has many uses within both microbiology and pharmacology. MB can treat disorders such as methemoglobinemia, malaria, Alzheimer’s disease, and certain forms of cancer. MB is also useful for molecular imaging due to its off-on fluorescent capabilities. MB derivatives with a urea bond at the 10-N position have been cleavable by triggers such as light. However, I was interested in sensitivity to reactive oxygen species (ROS). In this study, I wanted to determine if the MB derivative MB-EA exhibited sensitivity to ROS. MB-EA was exposed to varying concentrations of hydrogen peroxide and MB release was measured. I concluded …
Synthesis And Characterization Of Pamam-Fatty Acid “Janus-Type” Dendritic Hybrids For Biomedical Applications, Abigail Grace Barker
Synthesis And Characterization Of Pamam-Fatty Acid “Janus-Type” Dendritic Hybrids For Biomedical Applications, Abigail Grace Barker
Honors Theses
Janus dendrimers are amphiphilic macromolecules that have shown promising potential in the biomedical field. Due to their unique structure and properties, these branched block copolymers have the ability to self-assemble into bioinspired spherical nanoaggregates. Because they possess a hydrophobic and hydrophilic moiety, these aggregates show potential as drug delivery systems that can transport both hydrophobic and hydrophilic drugs. However, many of the proposed dendrimer systems suffer from certain weaknesses that hinder their practical usage as clinical treatment options. Some of these shortcomings include specificity, solubility, size, surface charge, and mechanical properties. To combat these problems, we synthesized and characterized a …
Synthesis Of Pharmaceutical And Personal Care Products And Pesticide Metabolites Of Environmental Concern, Isaiah Edwards
Synthesis Of Pharmaceutical And Personal Care Products And Pesticide Metabolites Of Environmental Concern, Isaiah Edwards
Honors Theses
Human pollution of aquatic environments by introduction of pharmaceutical and personal care products (PPCPs) as well as agrichemicals presents a grave threat to the health of aquatic organisms. Many of these chemicals not only exhibit toxicity to the species of complex ecosystems at various levels but also undergo metabolic transformation into moieties that have different and sometimes more potent physiochemical profiles. PPCP and pesticides as well as their metabolites impact organisms via a number of different mechanisms, with the most serious arguably being endocrine disruption. Two emerging pollutants, gemfibrozil and bifenthrin, possess naturally occurring metabolites that were determined to warrant …