Potential antitumor agents. 48. 3'-Dimethylamino derivatives of amsacrine: redox chemistry and in vivo solid tumor activity
摘要:
Structure-activity relationships for a series of acridine-substituted 3'-N(CH3)2 derivatives of the clinical antileukemic drug amsacrine (1) are reported. The parent (unsubstituted) compound 3 has activity against the Lewis lung solid tumor that is superior to amsacrine (1), the new clinical amsacrine analogue 4, and the recently developed 3'-NHCH3 derivative 2. Although the compounds generally bind less well to DNA and are less dose potent in vivo than either their amsacrine (3'-OCH3) or 3'-NHCH3 analogues, they show very high levels of antitumor activity, with the 4-OCH3 derivative capable of effecting 100% cures of the Lewis lung solid tumor. The broad structure-activity relationships for acridine substitution more closely resemble those of the amsacrine than the 3'-NHCH3 series, with 4-substituted and 4,5-disubstituted compounds showing the highest activity.
Potential antitumor agents. 41. Analogs of amsacrine with electron-donor substituents in the anilino ring
摘要:
The preparation and antitumor activity of a series of 3'-alkylamino and 3'-dialkylamino analogues of amsacrine are reported. The results support previous work suggesting that the presence of electron-donating groups in the 3'-position of the anilino ring substantially enhance the antitumor activity of amsacrine analogues, possibly by the provision of high levels of electron density at the 6'-position. The alkylamino derivatives generally possess tighter DNA binding, higher levels of in vitro and in vivo antileukemic activity, and greater aqueous solubility than the corresponding amsacrine analogues.
Potential antitumor agents. 52. Carbamate analogs of amsacrine with in vivo activity against multidrug-resistant P388 leukemia
作者:Gordon W. Rewcastle、Bruce C. Baguley、Graham J. Atwell、William A. Denny
DOI:10.1021/jm00392a009
日期:1987.9
provided increased activityagainst the multidrug-resistant P388/ADR leukemia subline in vivo. Since activityagainst such resistant tumors is of great clinical significance, a series of acridine-substituted carbamate derivatives were evaluated against both wild-type and ADR/resistant P388 leukemia and the Lewislungsolidtumor in vivo. Structure-activity relationships for all three tumor lines were similar
ATWELL, GRAHAM J.;BAGULEY, BRUCE C.;DENNY, WILLIAM A.;REWCASTLE, GORDON W+
作者:ATWELL, GRAHAM J.、BAGULEY, BRUCE C.、DENNY, WILLIAM A.、REWCASTLE, GORDON W+
DOI:——
日期:——
Potential antitumor agents. 48. 3'-Dimethylamino derivatives of amsacrine: redox chemistry and in vivo solid tumor activity
作者:Graham J. Atwell、Gordon W. Rewcastle、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm00387a012
日期:1987.4
Structure-activity relationships for a series of acridine-substituted 3'-N(CH3)2 derivatives of the clinical antileukemic drug amsacrine (1) are reported. The parent (unsubstituted) compound 3 has activity against the Lewis lung solid tumor that is superior to amsacrine (1), the new clinical amsacrine analogue 4, and the recently developed 3'-NHCH3 derivative 2. Although the compounds generally bind less well to DNA and are less dose potent in vivo than either their amsacrine (3'-OCH3) or 3'-NHCH3 analogues, they show very high levels of antitumor activity, with the 4-OCH3 derivative capable of effecting 100% cures of the Lewis lung solid tumor. The broad structure-activity relationships for acridine substitution more closely resemble those of the amsacrine than the 3'-NHCH3 series, with 4-substituted and 4,5-disubstituted compounds showing the highest activity.
Potential antitumor agents. 41. Analogs of amsacrine with electron-donor substituents in the anilino ring
作者:Graham J. Atwell、Gordon W. Rewcastle、William A. Denny、Bruce F. Cain、Bruce C. Baguley
DOI:10.1021/jm00369a022
日期:1984.3
The preparation and antitumor activity of a series of 3'-alkylamino and 3'-dialkylamino analogues of amsacrine are reported. The results support previous work suggesting that the presence of electron-donating groups in the 3'-position of the anilino ring substantially enhance the antitumor activity of amsacrine analogues, possibly by the provision of high levels of electron density at the 6'-position. The alkylamino derivatives generally possess tighter DNA binding, higher levels of in vitro and in vivo antileukemic activity, and greater aqueous solubility than the corresponding amsacrine analogues.