摘要
以1,2-二硬脂酸甘油酯为原料,与三氯氧磷及乙醇胺反应合成1,2-二硬脂酰甘油磷酰乙醇胺(DSPE);再以聚乙二醇2000 (PEG2000)为原料,通过磺酰化、叠氮化反应合成叠氮基聚乙二醇2000(N_3-PEG2000); DSPE与N_3-PEG2000在N,N-羰基二咪唑(CDI)作用下生成叠氮基聚乙二醇2000-1,2-二硬脂酰甘油磷酰乙醇胺(N_3-PEG2000-DSPE);最后通过催化氢化制备氨基聚乙二醇2000-1,2-二硬脂酰甘油磷酰乙醇胺(NH_2-PEG2000-DSPE),其结构经过IR、MS及~1H NMR等确证。
DSPE was synthesized by reactions with glycerol-1,2-distearate,phosphorusoxychloride and 2-aminoethanol as raw materials. N_3-PEG2000 was achieved by an efficient two step process from readily available PEG2000. Subsequently,N_3-PEG2000-DSPE was obtained by linking DSPE to N_3-PEG2000 via CDI. Finally,catalytic hydrogenation of the azido group yielded the target compound NH_2-PEG2000-DSPE,which was characterized by IR,~1H NMR,and MS.
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