作者:K. Barlos、D. Papaioannou、P. Cordopatis、D. Theodoropoulos
DOI:10.1016/s0040-4020(01)88549-5
日期:1983.1
N-trityl-hydroxyamino acids 2 prepared in situ with NaH, in the presence of imidazole, were selectively alkylated with alkyl iodides to give N-trityl-O-alkyl-hydroxyamino acids 3. Compounds 3 were readily converted to O-alkyl-hydroxyamino acids 5 or other intermediates useful for incorporation into a peptide chain. The applicability of these derivatives in the preparation of related peptides is illustrated
在咪唑存在下用NaH原位制备的N-三苯甲基-羟基氨基酸2的二钠盐用烷基碘选择性地烷基化,得到N-三苯甲基-O-烷基-羟基氨基酸3。化合物3易于转化为O-烷基-羟基氨基酸5或用于掺入肽链的其他中间体。这些衍生物在相关肽的制备中的适用性通过脑啡肽N-碳苯甲氧基-酪氨酰-甘氨酰-甘氨酰-苯丙氨酰基-(O-乙基)丝氨酸苄基酯和N-碳苯甲氧基-酪氨酰-甘氨酰的保护类似物的合成来说明。 -甘氨酰基-苯丙氨酰基-(O-甲基)高丝氨酸苄基酯。