New Stereoselective Reactions for Chiral Amine Synthesis

描述（由申请人提供）：本提案的总体目标是开发产生对映体富集有机化合物的新方法。这些产物是更精细的小分子的有价值的前体，所述小分子是药剂和/或更复杂的生物活性天然产物。所提出的方法具体针对1-氨基酸、1，2-二氨基酸、1-氨基膦酸和手性仲胺的简明合成。这些方法是基于手性质子催化剂作为新的手性，非外消旋试剂的对映选择性合成的发展。络合物是容易制备的有机催化剂，并且通常是台架稳定的固体。它们不含金属，因此可称为有机催化剂。这些研究有可能影响小分子和“生物”治疗剂的合成。此外，所述方法能够无金属地生产功能致密的单一对映异构体（和非对映异构体）有机化合物。 公共卫生相关性：本文综述了手性小分子有机催化剂的研究进展及相应的不对称反应。在单一步骤中，以立体化学富集的形式产生手性非外消旋仲胺及其衍生物（1-氨基酸、1-氨基膦酸酯、1，2-二氨基酸）。这些化学商品是生物活性天然产物、生物制剂和小分子治疗剂的常见亚基。

DESCRIPTION (provided by applicant): The overarching goal of this proposal is the development of new methods to generate enantioenriched organic compounds. These products are valuable precursors to more elaborate small molecules that are medicinal agents and/or more complex biologically active natural products. The proposed methods specifically target the concise synthesis of 1-amino acids, 1,2-diamino acids, 1-aminophosphonic acids and chiral secondary amines. These methods are based on the development of chiral proton catalysts as new chiral, non-racemic reagents for enantioselective synthesis. The complexes are readily prepared organocatalysts, and are often bench stable solids. They are metal free, and therefore may be referred to as organic catalysts. These studies have the potential to impact the synthesis of both small molecule and "biologic" therapeutic agents. Moreover, the methods enable the metal-free production of functionally dense, single enantiomer (and diastereomer) organic compounds. PUBLIC HEALTH RELEVANCE: This proposal describes the development of chiral small molecule organocatalysts and the corresponding enantioselective reactions. In a single step, chiral nonracemic secondary amines and their derivatives (1-amino acids, 1-aminophosphonates, 1,2- diamino acids) are produced in stereochemically enriched form. These chemical commodities are common subunits of biologically active natural products, biologics, and small molecule therapeutics.