Unique behavior of 2,6-bis(bromomethyl)naphthalene as a highly active organic DNA crosslinking molecule
摘要:
Among 14 bis-halomethylated naphthalenes and quinolines, 2,6-bis(bromomethyl) naphthalene was found to have highly active crosslinking activity on DNA. The unique behavior of high microbial mutagenicity, even though it had a low propensity to form double-strands in linearized plasmid DNA, suggested that it would offer a new seed, capable of forming intrastrand crosslinks similar to cisplatin. The electron withdrawal extent of the halogen atoms, the substitution patterns of two halomethyl groups, and the introduction of a nitrogen atom into the aromatic nucleus had remarkable effects on the activity of the molecule. (C) 2009 Elsevier Ltd. All rights reserved.
Scope and Limitations of a New Highly Selective Synthesis of Unsymmetrical Monomers for the Synthesis of Precursors toward Poly(arylenevinylene)s
作者:Michael Van Der Borght、Dirk Vanderzande、Peter Adriaensens、Jan Gelan
DOI:10.1021/jo990111k
日期:2000.1.1
In our laboratory a precursor route to poly(p-phenylenevinylene) derivatives is developed in which unsymmetricallysubstituted p-xylene derivatives, possessing a benzylic sulfinylalkyl group, are used as monomers. Because of this unsymmetry, we were forced to investigate thoroughly the synthesis of these sulfoxides, as we start from symmetric and readily accessible molecules, namely, bis(halomethyl)-p-xylene
Enhanced chiral recognition by γ-cyclodextrin–cucurbit[6]uril-cowheeled [4]pseudorotaxanes
作者:Ling Dai、Wanhua Wu、Wenting Liang、Wentong Chen、Xingke Yu、Jiecheng Ji、Chao Xiao、Cheng Yang
DOI:10.1039/c8cc00840j
日期:——
Mixing γ-cyclodextrin (γ-CD), cucurbit[6]uril (CB[6]) and tetraammonium-bearing axles together led to a spontaneous formation of γ-CD–CB[6]-cowheeled [4]pseudorotaxanes. The well-defined unsymmetrical cavities thus formed enhance the binding affinity towards chiral amines by factors of several hundreds and show remarkably improved chiral discrimination.
Composite type conductive polymer and process of producing aromatic compound
申请人:——
公开号:US20030092878A1
公开(公告)日:2003-05-15
A composite type conductive polymer having a phenylene vinylene backbone with a condensed hydrocarbon ring system introduced into the backbone to form a bend in a linear structure of the phenylene vinylene backbone.
Verfahren zur Fluoreszenzlöschung und neue kationische Naphthalin-peri-dicarbonsäureimid-Derivate
申请人:BAYER AG
公开号:EP0217256A2
公开(公告)日:1987-04-08
Zur Löschung der durch anionische optische Aufheller erzeugten Fluoreszenz werden praktisch farblose, wasserlösliche, kationische Verbindungen, die pro Molekül oder pro wiederkehrende Struktureinheit mindestens eine kationische Gruppe und pro Molekül mindestens zwei oder pro wiederkehrende Struktureinheit mindestens eine nitrogruppenfreie Naphthalin-peri-dicarbonsäureimid-Gruppe(n) enthalten, verwendet.