Potent antitumor N-mustard derivatives of 9-anilinoacridine, synthesis and antitumor evaluation
摘要:
A series of 9-anilinoacridine N-mustard derivatives, in which the alkylating N-mustard residue was linked to the C-3' or C-4' position of the anilino ring with an O-ethylene spacer, was synthesized and evaluated for cytotoxicity against human lymphoblastic leukemic cells (CCRF-CEM) in culture. The results showed that all of the new compounds exhibited potent cytotoxicity with IC50 values ranging from 0.002 to 0.7 muM, which were as potent or significantly more potent than 3-(9-acridinylamino)-5-hydroxy-methylaniline (AHMA). Compound 9 did not exhibit cross-resistance against both vinblastine-resistant (CCRF-CEM/VBL) and taxol-resistant (CCRF-CEM/taxol) cells. Additionally, compound 9 demonstrated potent antitumor effect in nude mice bearing human breast carcinoma MX-1 xenografts, resulting in complete tumor remission in two out of three mice at the maximal dose of 1-2 mg/kg (Q3Dx7) or 3 mg/kg (Q4Dx5) via intravenous injection. (C) 2004 Elsevier Ltd. All rights reserved.
Potent antitumor 9-anilinoacridines bearing an alkylating N-mustard residue on the anilino ring: synthesis and biological activity
作者:Valeriy A. Bacherikov、Ting-Chao Chou、Hua-Jin Dong、Xiuguo Zhang、Ching-Huang Chen、Yi-Wen Lin、Tsong-Jen Tsai、Rong-Zau Lee、Leroy F. Liu、Tsann-Long Su
DOI:10.1016/j.bmc.2005.03.057
日期:2005.6
A series of N-mustard derivatives of 9-anilinoacridine was synthesized for antitumor and structure-activity relationship studies. The alkylating N-mustard residue was linked to the C-3' or C-4' position of the anilino ring with an O-ethylene (O-C-2) O-butylene (O-C-4), and methylene (C-1) spacer. All of the new N-mustard derivatives exhibited significant cytotoxicity in inhibiting human lymphoblastic leukemic cells (CCRF-CEM) in culture. Of these agents, (3-(acridin-9-ylamino)-5-2-[bis(2-chloroethyl)amino]ethoxy}phenyl)methanol (10) was subjected to antitumor studies, resulting in an approximately 100-fold more potent effect than its parent analogue 3-(9-acridinylamino)-5-hydroxymethylaniline (AHMA) in inhibiting the growth of human lymphoblastic leukemic cells (CCRF-CEM) in vitro. This agent did not exhibit cross-resistance against vinblastine-resistant (CCRF-CEM/VBL) or Taxol-resistant (CCRF-CEM/Taxol) cells. Remarkably, the therapeutic effect of 10 at a dose as low as one tenth of the Taxol therapeutic dose [i.e., 1-2 mg/kg (Q3D x 7) or 3 mg/kg (Q4D x 5); intravenous injection] on nude mice bearing human breast carcinoma MX-1 xenografts resulted in complete tumor remission in two out of three mice. Furthermore, 10 yielded xenograft tumor suppression of 81-96% using human T-cell acute lymphoblastic leukemia CCRF-CEM, colon carcinoma HCT-116, and ovarian adenocarcinoma SK-OV-3 tumor models. (c) 2005 Elsevier Ltd. All rights reserved.
Potent Antitumor 9-Anilinoacridines and Acridines Bearing an Alkylating <i>N</i>-Mustard Residue on the Acridine Chromophore: Synthesis and Biological Activity
作者:Tsann-Long Su、Yi-Wen Lin、Ting-Chao Chou、Xiuguo Zhang、Valeriy A. Bacherikov、Ching-Huang Chen、Leroy F. Liu、Tsong-Jen Tsai
DOI:10.1021/jm060197r
日期:2006.6.1
A series of 9-anilinoacridine and acridine derivatives bearing an alkylating N-mustard residue at C4 of the acridine chromophore were synthesized. The N-mustard pharmacophore was linked to the C4 of the acridine ring with an O-ethyl ( O-C-2), O-propyl ( O-C-3), or O-butyl ( O-C-4) spacer. It revealed that all newly synthesized compounds were very potent cytotoxic agents against human leukemia and various solid tumors in vitro. These agents did not exhibit cross-resistance against vinblastine-resistant ( CCRF-CEM/VBL) or taxol-resistant ( CCRF-CEM/taxol) cells. It also showed that these agents were DNA cross-linking agents rather than topoisomerase II inhibitors. Of these agents, compounds 27a and 27c were shown to have potent antitumor activity in nude mice bearing the human breast carcinoma MX-1 xenograft. The therapeutic efficacies of these two agents are comparable to that of taxol.