Synthesis and characterisation of polyamine–poly(ethylene glycol) constructs for DNA binding and gene delivery
作者:Shane W Garrett、Owen R Davies、David A Milroy、Pauline J Wood、Colin W Pouton、Michael D Threadgill
DOI:10.1016/s0968-0896(00)00113-9
日期:2000.7
one pot. A similar process gave H2N(CH2)3NBoc(CH2)3NBoc(CH2)3NH2. BocMeN(CH2)3NHMe was alkylated by 1,3-dibromopropane to give BocMeN(CH2)3NMe(CH2)3NMe(CH2)3NMeBoc. A cyanoethylation/reduction sequence extended H2N(CH2)3NBoc(CH2)3NBoc(CH2)3NH2 to give H2N(CH2)3NBoc(CH2)3NBoc(CH2)3NBoc(CH2)3NBoc(CH2) 3NH2, which was converted to its mono- and di-MeOPEG550 derivatives. Deprotection gave the linear polyamine
需要改进的非病毒载体系统,以在基因治疗中有效地将DNA传递至靶细胞核。通过适当的Boc保护的嘧啶衍生物与ω-甲氧基PEG环氧乙烷基甲基醚的反应合成了一系列线性多胺聚(乙二醇)(PEG)构建体。通过这种方法已经制备了带有1-3个MeOPEG单元和0、2或4个N-甲基的构建体。H2N(CH2)3NBoc(CH2)3NBoc(CH2)3NHBoc是通过在一个锅中通过三氟乙酰基除草剂,Boc的连接以及去除三氟乙酰基而有效制备的。类似的过程得到H 2 N(CH 2)3 NBoc(CH 2)3 NBoc(CH 2)3 NH 2。用1,3-二溴丙烷将BocMeN(CH2)3NHMe烷基化,得到BocMeN(CH2)3NMe(CH2)3NMe(CH2)3NMeBoc。氰基乙基化/还原序列扩展了H2N(CH2)3NBoc(CH2)3NBoc(CH2)3NH2,得到H2N(CH2)3NBoc(CH2)3NBo