会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 16. 发明公开
    • AMINATED POLYAMINES
    • 胺化多胺
    • EP1812377A1
    • 2007-08-01
    • EP04800606.8
    • 2004-11-03
    • University of Florida
    • BERGERON, Raymond, J., Jr
    • C07C211/13A61K31/13
    • C07C211/13
    • An aminated polyamine having the formula (I), or its possible stereoisomers or a salt thereof with a pharmaceutically acceptable acid wherein, R1 and R4 may be the same or different and are alkyl, aryl, aryl alkyl or cycloalkyl, optionally having an alkyl chain interrupted by at least one etheric oxygen atom; R2 and R3 may be the same or different and are R1, R4 or H; N1, N2, N3 and N4 are nitrogen atoms capable of protonation at physiological pH's; ALK1, ALK2 AND ALK3 may be the same or different and are straight or branched chain alkylene bridging groups having 1 to 4 carbon atoms which effectively maintain the distance between the nitrogen atoms such that the polyamine: (i) is capable of uptake by a target cell upon administration of the polyamine to a human or non-human animal or is capable of binding to at least one polyamine site of a receptor located within or on the surface of a cell upon administration of the polyamine to a human or non-human animal; and (ii) upon uptake by the target cell, competitively binds via an electrostatic interaction between the positively charged nitrogen atoms to biological counter-anions; the polyamine, upon binding to the biological counter-anion in the cell, functions in a manner biologically different than the intracellular polyamines; and further wherein at least one of said bridging groups ALK1, ALK2 and ALK3 contains at least one -CH(NRH)- group which is not alpha- to either of the nitrogen atoms and R is H, alkyl, acyl or sulfonyl.