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以二硫键连接尿嘧啶核苷C-5位肽缀合物的合成
引用本文:聂菲磷,王晓峰,刘洋,杨振军,张亮仁,张礼和. 以二硫键连接尿嘧啶核苷C-5位肽缀合物的合成[J]. 中国药学, 2008, 17(3): 203-208
作者姓名:聂菲磷  王晓峰  刘洋  杨振军  张亮仁  张礼和
作者单位:北京大学天然药物及仿生药物国家重点实验室,北京100191
基金项目:国家自然科学基金,科技部科研项目
摘    要:
为了方便快捷地制备嘧啶核苷-肽缀合物,我们发展了一种一釜合成的方法。从尿嘧啶核苷出发,经过4步制备了关键中间体5-乙酰巯亚甲基-2′,3′-二-O-异亚丙基尿苷(4)。在酸性条件下,脱除化合物4的乙酰基,同时游离的巯基与PySS-R(8,12,15,Py=2-吡啶基,R=氨基酸或肽)反应形成新的二硫键,即形成了尿苷与氨基酸或肽以二硫键连接的缀合物(9,13,2)。

关 键 词:核苷缀合物  巯基交换  二硫键形成

Synthesis of nucleoside-peptide conjugate with disulfide bond as linker at C-5 of uridine
Fei-Lin Nie,Xiao-Feng Wang,Yang Liu,Zhen-Jun Yang,Liang-Ren Zhang,Li-He Zhang. Synthesis of nucleoside-peptide conjugate with disulfide bond as linker at C-5 of uridine[J]. Journal of Chinese Pharmaceutical Sciences, 2008, 17(3): 203-208
Authors:Fei-Lin Nie  Xiao-Feng Wang  Yang Liu  Zhen-Jun Yang  Liang-Ren Zhang  Li-He Zhang
Affiliation:(The State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China )
Abstract:
In order to prepare pyrimidine nucleoside-peptide conjugate concisely, we developed a one-pot synthetic strategy. Started from uridine, 5-S-acetyl-thiomethyl-2',3 '-di-O-isopropylidene-uridine (4) was synthesized as the key intermediate in four steps. Under acidic condition, compound 4 was deprotected and reacted with PySS-R (8, 12, 15, Py = 2-pyridyl, R = amino acid or peptide) in one pot to form uridine conjugates (9, 13, 2) with disulfide bond as linker.
Keywords:Nucleoside-peptide conjugate  Thiol exchange  Disulfide bond formation
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