The photolabile hydrazine linker of the present invention is based on the o-nitro-veratryl group, which is capable of releasing hydrazide derivatives upon UV irradiation. The linker allows for a new solid-phase peptide synthesis (SPPS) strategy which is fully orthogonal to the most commonly used protecting groups and chemical methods in SPPS and shows excellent compatibility with peptide composition, notably the 20 naturally occurring a-amino acid residues (even in their side-chain protected form) are accepted in the C-terminal of the peptide hydrazides. Furthermore, the linker unit can be applied to synthesize combinatorial libraries of biological interesting heterocyclic compounds, such as pyranopyrazoles.
本发明的光敏
水合
肼连接单元基于o-硝基-维拉特基团,能够在紫外辐射下释放
水合
肼衍
生物。该连接单元允许一种全新的固相肽合成(
SPPS)策略,完全正交于
SPPS中最常用的保护基和
化学方法,并且与肽组成具有极好的兼容性,特别是20种天然存在的
α-氨基酸残基(即使在它们的侧链保护形式下)也可以被接受到肽
水合
肼的C-末端。此外,连接单元可以用于合成
生物有趣的
杂环化合物的组合式库,例如
吡喃
吡唑。