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采用叔丁氧羰基(Boc)、苄氧羰基(Z)和芴甲氧羰基(Fmoc)这3种保护基保护苯丙氨酸的氨基,顺利得到3个保护的苯丙氨酸(Ⅲa-c);保护的苯丙氨酸与精左氨基物(Ⅱ)进行偶联,较高收率地合成了3个未见文献报道的目标分子(Ⅳa-c),产物的结构通过IR,1H NMR,13C NMR测试得到了验证.对氨基酸的保护及偶联反应的条件进行了优化.Abstract: With butyloxycarbonyl (Boc), benzyloxycarbonyl (Z) and fluorenylmethyloxycarbonyl (Fmoc)as protecting groups, three amino group-protected L-phenylalanines were successfully obtained. Aided by different coupling reagents, three new conjugated products of the amino group-protected L-phenylalanines with chloramphenicolbase were synthesized with a yield of 70%-78%. The chemical structures of the new compounds were confirmed by IR, 1H NMR, and 13C NMR.The conditions for the reactions mentioned above were optimized. 相似文献
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