中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | N-Acetyl-L-serin-methylamid | 6367-12-0 | C6H12N2O3 | 160.173 |
The peptide Ac-Ser(P)- NHMe and the multiple-Ser(P)-containing peptides Ac-Ser(P)-Ser(P)- NHMe and Ac-Ser(P)-Ser(P)-Ser(P)- NHMe were prepared in good yield by a global phosphorylation approach which employed benzyl phosphate protection. The three serine-containing peptides were phosphorylated by the use of dibenzyl N,N-diethylphosphoramidite/1H-tetrazole followed by in situ oxidation of the resultant dibenzyl phosphite-triesters with m- chloroperoxybenzoic acid. The protected Ser(PO3Bzl2)-containing peptides were purified by C18 reverse-phase silica flash column chromatography and the benzyl phosphate groups were cleaved from the protected Ser(PO3Bzl2) peptides by palladium- catalysed hydrogenolysis.