Synthesis of novel 3-amino-2-(4-chloro-2-mercaptobenzenesulfonyl)-guanidine derivatives as potential antitumor agents
摘要:
Novel 3-amino-2-(4-chloro-2-mercaptobenzenesulfonyl)guanidine derivatives have been synthesized as potential anticancer agents. The in vitro antitumor activity of these compounds has been evaluated in the US National Cancer Institute (NCI), and relationships between structure and antitumor activity are discussed. The prominent compound was 1-allyl-2-[4-chloro-5-(4-chlorophenylcarbamoyl)-2-methylthiobenzenesulfonyl]-3-(5-nitrofurfurylideneamino)guanidine (8) with remarkable activity against 21 human tumor cell lines representing leukemia, lung, colon, melanoma, ovarian, renal, prostate and breast (GI(50) = 0.3-3.0 mu M), and selectivity toward leukemia RPMI-8226 cell line (GI(50) = 0.3 VM, TGI = 1.4 mu M). (c) 2007 Elsevier Masson SAS. All rights reserved.
Synthesis, molecular structure and anticancer activity of 1-allyl-3-amino-2-(4-chloro-2-mercaptobenzenesulphonyl)guanidine derivatives
摘要:
A series of 3-allylamino-6-chloro-7-R-1.1-dioxo-1.4.2-benzodithiazines (2a-e) vas obtained by the reaction of 6-chloro-3-methylthio- 1.4.2-benzodithiazine-1. 1-dioxides (1a-e) with allylamine. Selective hydrazinolysis of the allylaminobenzodithiazines (2a-e) gave the appropriate 1-allyl 1-3-amino-2-(4-chloro-2-mercaptobenzenesulphonyl)guanidines (3a-e) in good yields. The reaction of 3a with dimethylsulphate under alkaline conditions provided the methylthio derivative 4. The structures of these compounds were confirmed on the basis of elemental analysis. spectral data (IR. H-1- and C-13-NMR) and X-ray analysis. Screening data indicated that the compounds 3a and 3d exhibited significant in vitro activities against numerous human tumour cell lines, whereas compounds 3b and 3c showed a moderate activity. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.