"Organobismuth reagents in C-N, C-O, and C-C bond forming reactions and synthesis of biologically active compounds."

开发允许有效构建C-O、C-N和C-C键的新方法学在制备药学相关化合物中是必不可少的。在生物活性分子上引入官能化的小的线性或环状烷基基团有利于探索它们的结合环境和微调与生物靶标的相互作用。此外，该练习允许优化化合物的生物物理性质，转化为候选药物的改善的药代动力学特征。 虽然存在许多方法来进行这样的有机转化，但它们中的一些具有较差的底物范围，需要复杂的配体/催化剂体系或需要昂贵的试剂，并且在某些情况下，产生有毒的副产物。有机铋试剂在有机化学中有着广泛的应用，部分原因是其独特的反应性以及与铋盐相关的低成本和毒性。 目前的建议侧重于开发新的合成方法，利用独特的反应性的有机双金属试剂在转移高度官能化的烷基到特权的支架上使用的药物化学，如杂环，酚，酰胺和胺。 这些方法应该在医药、工艺或农业化学中找到广泛的应用，通过允许有利地合成目前需要多步骤序列用于其制备的化合物。 参与该研究计划的学生将学习最先进的技术以及相关的基础理论，为他们在工业或学术界的成功职业生涯做好准备。

The development of new methododologies that allow the efficient construction of C-O, C-N, and C-C bonds is essential in the preparation of pharmaceutically relevant compounds. The incorporation of functionalized small linear or cyclic alkyl groups on bioactive molecules facilitates the exploration of their binding environment and the fine tuning of interactions with the biological target. In addition, this exercise allows the optimization of the biophysical properties of the compounds, translating into improved pharmacokinetic profiles for the drug candidate. While many methods exist to perform such organic transformations, some of them suffer from poor substrate scope, require complex ligand/catalyst systems or necessitate reagents that are expensive and, in some cases, generate toxic side products. Organobismuth reagents have found wide applications in organic chemistry, in part due to their unique reactivity and the low cost and toxicity associated with bismuth salts. The current proposal focuses on the development of new synthetic methodologies that exploit the unique reactivity of organobismuth reagents in the transfer of highly functionalized alkyl groups onto privileged scaffolds used in medicinal chemistry, such as heterocycles, phenols, amides, and amines. Such methods should find broad applications in medicinal, process, or agricultural chemistry, by allowing the expedient synthesis of compounds which currently require multi-step sequences for their preparation. Students involved in this research program will learn state-of-the-art techniques as well as the related fundamental theory, preparing them for a successful career in industry or academia.