Synthesis of atypical carotenoids: self-preserving inhibitors of lipid peroxidati

非典型类胡萝卜素的合成：脂质过氧化的自我保护抑制剂安全有效地抑制脂质双分子层过氧化的小分子可以大大促进许多流行的人类疾病的治疗，包括动脉粥样硬化、癌症、黄斑变性和关节炎。 然而，大多数已知的O型抗脂质过氧化剂具有重要的局限性。 例如，典型的类胡萝卜素如O虾青素具有强烈的自我- Me HO Me多甲藻黄素的倾向（1）Me与活性氧Me物种的破坏性相互作用，这限制了脂质O保护作用的寿命，并导致产生HO Me Me有害的类胡萝卜素分解产物.相比之下，最近发现了几种Me Me Me Me OH“非典型”类胡萝卜素，它们具有通过Me O synechoxanthin（2）自我保护作用机制的特殊抗脂质过氧化活性的潜力。 具体地说，该研究计划将开发HO O O O Me非典型类胡萝卜素多甲素（1）、HO O Me聚胞黄质（2）和二-[（6-O-油酰基-2-D-HO Me Me Me Me吡喃葡萄糖基）氧基]-虾青素（3），对Me Me Me Me进行系统的结构/功能研究，以了解其独特的抗脂质过氧化剂OH谱，并通过理性指导的组合合成和高-二-[（6-O-油酰基-！D-吡喃葡萄糖基）氧基]-虾青素（3）通量筛选。PHS 398/2590（Rev. 05/01）

DESCRIPTION (provided by applicant): Project Summary Synthesis of atypical carotenoids: self-preserving inhibitors of lipid peroxidation Small molecules that safely and effectively inhibit the peroxidation of lipid bilayers stand to substantially advance the treatment of many prevalent human diseases, including atherosclerosis, cancer, macular degeneration, and arthritis. However, most of the known O antilipoperoxidants have important limitations. Me Me O Me H HO Me For example, typical carotenoids such as O astaxanthin have a strong propensity for self- Me HO Me peridinin (1) Me OAc destructive interactions with reactive oxygen Me species, which limits the lifetime of the lipid O protective effect and leads to the generation of HO Me Me harmful carotenoid breakdown products. In contrast, there are several recently discovered Me Me Me Me OH "atypical" carotenoids that have the potential Me for exceptional antilipoperoxidant activities via Me O synechoxanthin (2) self-preserving mechanisms of action. Specifically, this research program will develop O highly efficient and flexible syntheses of the HO O O O Me atypical carotenoids peridinin (1), HO O Me synechoxanthin (2), and di-[(6-O-oleoyl-2-D- HO Me Me Me Me glucopyranosyl)oxy]-astaxanthin (3), execute Me Me Me Me systematic structure/function studies to Me O O OO OH understand their unique antilipoperoxidant OH profiles, and extensively optimize their Me O OH activities via iterative cycles of rationally- guided combinatorial synthesis and high- di-[(6-O-oleoyl-!-D-glucopyranosyl)oxy]-astaxanthin (3) throughput screening. PHS 398/2590 (Rev. 05/01) Page Continuation Format Page