描述了80种与二霉素和噻唑类相关的短小沟结合剂的合成和性能。化合物的设计主要基于小沟结合剂和DNA之间的疏水相互作用而增加的亲和力。疏水性芳族头基(包括喹啉基和苯甲酰基衍生物)的引入以及烯烃作为连接剂的引入,导致几种具有MIC的金黄色葡萄球菌的强活性抗菌化合物(对甲氧西林敏感和耐药的菌株)范围为0.1-5 microg mL -1,与许多已建立的抗菌剂相当。还发现针对黑曲霉和白色念珠菌的抗真菌活性为20-50微克mL-1 MIC,再次与已确立的抗真菌药物相当。
A new synthesis of alkene-containing minor-groove binders and essential hydrogen bonding in binding to DNA and in antibacterial activity
作者:Nahoum G. Anthony、David Breen、Gavin Donoghue、Abedawn I. Khalaf、Simon P. Mackay、John A. Parkinson、Colin J. Suckling
DOI:10.1039/b901898k
日期:——
alkenes linking the aryl head group of the minor-groovebinder promote strong binding to DNA and high antibacterial activity against Gram-positive bacteria. Conversely, a minor-groovebinder containing an alkene located towards the alkylamino tail group has a low affinity for DNA and does not show antibacterial activity. These observations suggest an important role for specific hydrogen bonds in the
DNA 含烯烃小凹槽结合剂的实用合成,与偏端霉素,基于N-烷基吡咯醛的维蒂希化学,描述了具有广泛结构多样性的潜力。已通过物理方法(熔解温度和 NMR)评估了所制备的化合物与 DNA 的结合及其抗菌活性。值得注意的是,我们发现连接小槽结合物芳基头基的烯烃可促进与 DNA 的强结合以及对革兰氏阳性菌的高抗菌活性。相反,含有位于烷基氨基尾基的烯烃的小凹槽粘合剂对 DNA 的亲和力较低,并且不显示抗菌活性。这些观察结果表明,特定氢键在此类化合物与 DNA 的结合及其抗菌活性中发挥着重要作用。
NOVEL MINOR GROOVE BINDERS
申请人:Khalaf Abedawn
公开号:US20100016311A1
公开(公告)日:2010-01-21
There is provided compounds of formula (I), wherein R
1
, R
11
, R
12
, Q
a
, X, Q
b
, Q
c
, A and D have meanings given in the description, or a pharmaceutically acceptable salt or solvate thereof, which compound, salt or solvate binds to the minor groove of DNA.
There is provided compounds of formula (I), wherein R1, R11, R12, Qa, X, Qb, Qc, A and D have meanings given in the description, or a pharmaceutically acceptable salt or solvate thereof, which compound, salt or solvate binds to the minor groove of DNA.