spacered dimericacridinecompounds was prepared. Their ability to interrupt the protein association of prion‐ and Alzheimer‐specific proteins and Ab peptides was explored using a fast screening system based on FACS analysis. The bis‐acridines displayed a higher activity than the corresponding monomers. Among these derivatives, best results were obtained with the 2,4‐dimethoxy‐6‐nitro compound 7h for
Drosdow, Zhurnal Obshchei Khimii, 1936, vol. 6, p. 1641,1643
作者:Drosdow
DOI:——
日期:——
Synthesis and DNA-sequence selectivity of a series of mono- and difunctional 9-aminoacridine nitrogen mustards
作者:Kurt W. Kohn、Ann Orr、Patrick M. O'Connor、Lynn James Guziec、Frank S. Guziec
DOI:10.1021/jm00027a008
日期:1994.1
The aim of this work was to identify nitrogen mustards that would react selectively with DNA, particularly in G-rich regions. A sei ies of mono- and difunctional nitrogen mustards was synthesized in which the (2-chloroethyl)amino functions were connected to the N-9 of 9-aminoacridine by way of a spacer chain consisting of two to six methylene units. The length of the spacer chain connecting the alkylating and putative DNA-intercalating groups was found to affect the preference for the alkylation of different guanine-N-7 positions in a DNA sequence. All of the compounds reacted preferentially at G's that are followed by G as do most other types of nitrogen mustards, but the degree of selectivity was greater. The compounds reacted at much lower concentrations than were required for comparable reaction by mechlorethamine (HN2), consistent with initial noncovalent binding to DNA prior to guanine-N-7 alkylation. The degree of DNA-sequence selectivity increased as the spacer-chain length decreased below four methylene units. Most strikingly, long spacer compounds reacted strongly at 5'-GT-3' sequences, Whereas this reaction was almost completely suppressed when-the spacer length was reduced to two or three methylenes. Mono- and difunctional compounds of a given spacer length showed no consistent difference in DNA-sequence preference.
Drosdow, Zhurnal Obshchei Khimii, 1937, vol. 7, p. 2292,2295
作者:Drosdow
DOI:——
日期:——
339. Attempts to find new antimalarials. Part XV. The synthesis of acridine compounds related to atebrin