New synthesis of D,L-fmoc protected 4- phosphonomethylphenylalanine derivatives and their enzymatic resolution
作者:Krystyna baczko、Wang-Qing Liu、Bernard P. Roques、Christlane Garbay-Jaureguiberry
DOI:10.1016/0040-4020(95)01003-3
日期:1996.2
enzymatic resolution of ethyl 4-[(dimethylphosphono)methyl]-D,L-phenylalaninate succeeded. These results are discussed by comparison with the literature data. The L and D amino acids were used to prepare separately, through solid-phase peptide synthesis, followed by deprotection of dimethylphosphonate group by trimethylsilyliodide (TMSI) in acetonitrile, the L and D isomers of Glu-Asp-Val- Pmp-Glu-Asn-Leu-His-Thr
描述了适用于固相肽合成的N - Fmoc 4-膦酰基甲基-D,L-苯丙氨酸在二叔丁基或二甲基膦酸酯形式(Fmoc-Pmp(OR)2)保护下的新合成方法。这些O的水解稳定类似物的拆分通过非对映异构体盐的部分重结晶或使用枯草杆菌蛋白酶嘉士伯酯酶尝试了β-磷酸酪氨酸。只有4-[((二甲基膦酰基)甲基]乙基-D,L-苯丙氨酸乙酯的酶促拆分成功。通过与文献数据进行比较来讨论这些结果。氨基酸的L和d被用来分别制备,通过固相肽合成,接着在乙腈中由三甲基甲dimethylphosphonate基的脱保护(TMSI),GLU-ASP-Val-的L和d异构体PMP -Glu-ASN -Leu-His-Thr,一种肽,对应于磷酸酶PTP 1C的潜在磷酸化位点。