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
One-electron redox chemistry of amsacrine, mAMSA [9-(2-methoxy-4-methylsulphonylaminoanilino)acridinium], its quinone di-imine, and an analogue. A radiolytic study
作者:Robert F. Anderson、John E. Packer、William A. Denny
DOI:10.1039/p29880000489
日期:——
The redoxchemistry of the clinical antileukemia drug mAMSA (amsacrine) and of its dimethylamino analogue (diAMSA) has been investigated by radiolytic methods. Steady-state and pulse radiolysis experiments show that upon one-electron oxidation both compounds give quinonedi-imine radicals (mAQDI˙ and diAQDI˙) which disproportionate to the parent compounds and the corresponding quinonedi-imines (mAQDI
临床抗白血病药物mAMSA(氨苯uk碱)及其二甲氨基类似物(diAMSA)的氧化还原化学已通过放射分解方法进行了研究。稳态和脉冲辐射分解实验表明,单电子氧化后,两种化合物都会生成与母体化合物和相应的醌二亚胺(mAQDI和diAQDI)不成比例的醌二亚胺基团(mAQDI˙和diAQDI˙)。醌二亚胺的单电子还原得到相同的中间基团,该中间基团未被氧氧化。纳秒脉冲辐射分解实验表明,醌二亚胺的初始单电子还原也发生在the啶环上,但随后分子内电子迅速转移至醌二亚胺侧链。mAMSA的单电子还原发生在cr啶环上,并导致形成cri啶。mAMSA–mAQDI˙对在pH 7.4时的氧化还原电势计算为915 mV(与nhe相比),而mAMSA–mAQDI对的氧化还原电势为415 mV。类似的diAMSA显示出相似的可逆氧化还原化学反应,但更易于氧化,计算得出的氧化还原电位diAMSA–diAQDI˙为635 m
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.
Redox chemistry of the 9-anilinoacridine class of antitumor agents
作者:Jeffrey L. Jurlina、Andrew Lindsay、John E. Packer、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm00386a006
日期:1987.3
on the anilino ring undergo facile, chemically reversible, two-electron oxidation to quinone diimines. The chemical and electrochemical oxidation of three groups of 9-anilinoacridines (1'-substituted derivatives, together with 3'-substituted analogues and acridine-substituted analogues of the clinical antileukemic drug amsacrine) have been studied and their redox potentials determined. For aniline-substituted
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.