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
    • 10. 发明授权
    • Bifunctional molecules having a DNA intercalator or DNA groove binder
linked to ethylene diamine tetraacetic acid
    • US4665184A
    • 1987-05-12
    • US860604
    • 1986-05-07
    • Peter B. DervanRobert P. Hertzberg
    • Peter B. DervanRobert P. Hertzberg
    • C07D207/34C07D221/12
    • C07D207/34C07D221/12
    • Novel bifunctional molecules having a DNA intercalator or DNA groove binder linked to ethylene diamine tetraacetic acid such as compounds having the formula: ##STR1## wherein R is methyl or ethyl. Also, the method of cleaving DNA by contact with one of the above-identified molecules in the presence of ferrous ion and oxygen.The process of preparing said molecules by the reaction of P-carboxy methidium halide, p-carboxy ethidium halide, or other DNA intercalator or DNA groove binder with 1-3-diaminopropane followed by condensation with ethylenediamine tetraacetic acid.Distamycin-EDTA.Fe(II)(DE.FE(II)) contains EDTA attached to the amino terminus of the groove binder tripeptide (tris-N-methylpyrrolecarboxamide). DE.Fe(II) cleaves DNA contiguous to a five base pair A+T rich sequence. This is a novel and unique molecule and superior in sequence specificity to the naturally occurring antitumor compound used in man, bleomycin which cleaves DNA at a two base pair recognition site. EDTA-distamycin-Fe(II)(ED.Fe(III)) contains EDTA attached to the carboxy terminus of the groove binder tripeptide, tris-N-methylpyrrolecarboxamide. ED.Fe(II) cleaves DNA contiguous to a five base pair A+T rich sequence. Penta-N-methylpyrrolecarboxamide-EDTA.Fe(II)(P5E.Fe(II)) cleaves DNA on opposite strand at the six base pair recognition level in a catalytic reaction. This is the first designed synthetic molecule that approximates the double strand sequence specific cleavage of DNA(4-6 bp recognition level) by the natural substance restriction enzymes, tools which make possible recombinant DNA manipulations. P5E.Fe(II) cuts DNA at sequences not available by the naturally occurring restriction enzymes.The dimers, bis(EDTA-distamycin.Fe(II) and EDTA-bisdistamycin.Fe(II) which double strand cleave DNA at the eight base pair recognition level (A+T rich).