DNA-directed alkylating agents. 3. Structure-activity relationships for acridine-linked aniline mustards: consequences of varying the length of the linker chain
摘要:
Four series of acridine-linked aniline mustards have been prepared and evaluated for in vitro cytotoxicity, in vivo antitumor activity, and DNA cross-linking ability. The anilines were attached to the DNA-intercalating acridine chromophores by link groups (-O-, -CH2-, -S-, and -SO2-) of widely varying electronic properties, providing four series of widely differing mustard reactivity where the alkyl chain linking the acridine and mustard moieties was varied from two to five carbons. Relationships were sought between chain length and biological properties. Within each series, increasing the chain length did not alter the reactivity of the alkylating moiety but did appear to position it differently on the DNA, since cross-linking ability (measured by agarose gel assay) altered with chain length, being maximal with the C4 analogue. The in vivo antitumor activities of the compounds depended to some extent on the reactivity of the mustard, with the least reactive SO2 compounds being inactive. However, DNA-targeting did appear to allow the use of less reactive mustards, since the S-linked acridine mustards showed significant activity whereas the parent S-mustard did not. Within each active series, the most active compound was the C4 homologue, suggesting some relationship between activity and extent of DNA alkylation.
DNA-directed alkylating agents. 3. Structure-activity relationships for acridine-linked aniline mustards: consequences of varying the length of the linker chain
摘要:
Four series of acridine-linked aniline mustards have been prepared and evaluated for in vitro cytotoxicity, in vivo antitumor activity, and DNA cross-linking ability. The anilines were attached to the DNA-intercalating acridine chromophores by link groups (-O-, -CH2-, -S-, and -SO2-) of widely varying electronic properties, providing four series of widely differing mustard reactivity where the alkyl chain linking the acridine and mustard moieties was varied from two to five carbons. Relationships were sought between chain length and biological properties. Within each series, increasing the chain length did not alter the reactivity of the alkylating moiety but did appear to position it differently on the DNA, since cross-linking ability (measured by agarose gel assay) altered with chain length, being maximal with the C4 analogue. The in vivo antitumor activities of the compounds depended to some extent on the reactivity of the mustard, with the least reactive SO2 compounds being inactive. However, DNA-targeting did appear to allow the use of less reactive mustards, since the S-linked acridine mustards showed significant activity whereas the parent S-mustard did not. Within each active series, the most active compound was the C4 homologue, suggesting some relationship between activity and extent of DNA alkylation.
[EN] TRIAZOLO[4,5-D]PYRIMIDINE DERIVATIVES FOR THE TREATMENT OF DISEASES SUCH AS CANCER<br/>[FR] DÉRIVÉS DE TRIAZOLO[4,5-D]PYRIMIDINE POUR LE TRAITEMENT DE MALADIES TELLES QUE LE CANCER
申请人:MERCK PATENT GMBH
公开号:WO2014135244A1
公开(公告)日:2014-09-12
Compounds of the formula I, in which R1 and R2 have the meanings indicated in Claim 1, are inhibitors of GCN2, and can be employed, inter alia, for the treatment of cancer.
[EN] MACROCYCLES AS KINASE INHIBITORS<br/>[FR] MACROCYCLES UTILISÉS EN TANT QU'INHIBITEURS DE KINASES
申请人:MERCK PATENT GMBH
公开号:WO2014180524A1
公开(公告)日:2014-11-13
Compounds of the formula I in which X, Y, Q1, M, Q2 and B have the meanings indicated in Claim 1, are inhibitors of GCN2, and can be employed, inter alia, for the treatment of cancer.
Pyrrole derivatives are disclosed as agents for the treatment and prevention of neuropathies and neurodegenerative diseases characterized by the presence of axonal blockages, impaired axonal transport or impaired trafficking of vesicles in neurons.
Novel pyrrole derivatives are disclosed as Aβ
42
-lowering agents for the treatment and prevention of neurodegenerative disorders characterized by the formation or accumulation of amyloid plaques comprising the Aβ
42
peptide.
Novel pyrrole derivatives are disclosed as Aβ
42
-lowering agents for the treatment and prevention of neurodegenerative disorders characterized by the formation or accumulation of amyloid plaques comprising the Aβ
42
peptide.