Improved synthesis of [p-phosphono and p-sulfo]methylphenylalanine. Resolution of [p-phosphono-, p-sulfo-, p-car☐y-and p-N-hydroxycar☐amido-]methylphenylalanine.
作者:Christiane Garbay-Jaureguiberry、Isabelle McCort-Tranchepain、Brigitte Barbe、Damien Ficheux、Bernard P. Roques
DOI:10.1016/s0957-4166(00)82297-1
日期:1992.5
proteins, we recently synthesized the new amino acids, p(CH2PO3H2)Phe and p(CH2SO3H)Phe (D,L mixtures) as chemically and enzymatically stable analogs of (O-phospho) and (O-sulfo)-tyrosine. Here, we report improved syntheses of these amino acids and of their N-Boc protected derivatives for use in solid-phase peptide synthesis. A protocol for their enzymatic resolution by use of subtilisin Carlsberg esterase
为了分析酪氨酸在肽和蛋白质中的翻译后磷酸化和硫酸化的作用,我们最近合成了新的氨基酸p(CH 2 PO 3 H 2)Phe和p(CH 2 SO 3 H)Phe(D,L混合物)作为(O-磷酸)和(O-磺基)酪氨酸的化学和酶促稳定类似物。在这里,我们报告了这些氨基酸及其N-Boc保护的衍生物用于固相肽合成的合成方法的改进。开发了一种使用枯草杆菌蛋白酶嘉士伯酯酶进行酶解的方案,并将其扩展到修饰氨基酸p(CH 2 CO 2 H)-D,L-Phe和p(CH 2CONHOH)-D,L-Phe。通过手性相HPLC测试拆分的氨基酸的光学纯度。给出了这些氨基酸及其N-Boc衍生形式的物理常数,包括其在PTC形式下的表征(苯硫代氨基甲酰基)。