申请人:——
公开号:US04739076A1
公开(公告)日:1988-04-19
An amino blocking reagent, 1-isopropyl-3-ethoxy-4-nitro-2-oxo-3-pyrroline has been obtained. The new reagent is water soluble. It has yielded an N-protected glycine active ester with solubiity appropriate for reaction with both peptides and proteins. N-hydroxysuccinimide esters of N-i-NOPY- and N-c-NOPY-glycines were prepared. The N-hydroxysuccinimide active esters were produced by treatment with dicyclohexylcarbodimide (DCC) and N-hydroxysuccinimide in tetrahydrofuran (THF). The new reagents for glycine attachment are stable crystalline compounds. These active esters were used to attach glycine residues to a dipeptide and a protein by the salt-coupling procedure.
已经获得了一种氨基酸阻断试剂1-异丙基-3-乙氧基-4-硝基-2-氧代-3-吡咯烯。这种新试剂是水溶性的。它产生了一种N-保护甘氨酸活性酯,其溶解度适合与肽和蛋白质反应。制备了N-i-NOPY-和N-c-NOPY-甘氨酸的N-羟基琥珀酰亚胺酯。 N-羟基琥珀酰亚胺活性酯是通过在四氢呋喃(THF)中用二环己基碳二亚胺(DCC)和N-羟基琥珀酰亚胺处理而制成的。用于甘氨酸连接的新试剂是稳定的晶体化合物。这些活性酯通过盐耦合程序用于将甘氨酸残基连接到二肽和蛋白质上。