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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

聂菲璘,王晓峰,刘洋,杨振军*,张亮仁,张礼和   

  1. 北京大学 天然药物及仿生药物国家重点实验室, 北京 100191
  • 收稿日期:2008-03-12 修回日期:2008-08-10 出版日期:2008-09-15 发布日期:2008-09-15
  • 通讯作者: 杨振军*

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   

  1. The State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
  • Received:2008-03-12 Revised:2008-08-10 Online:2008-09-15 Published:2008-09-15
  • Contact: Zhen-Jun Yang*

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'--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, 核苷缀合物, 核苷缀合物, 巯基交换, 巯基交换, 巯基交换, 二硫键形成, 二硫键形成, 二硫键形成

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.

Key words: Nucleoside-peptide conjugate, Nucleoside-peptide conjugate, Thiol exchange, Thiol exchange, Disulfide bond formation, Disulfide bond formation

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Supporting: Foundation items: National Natural Science Foundation of China (Grant No. 20332010), the Ministry of Science and Technology of China (Grant No. 2005BA711A04, 2006AA02Z144).
*Corresponding author. Tel.: 86-10-82802503