名称:
An efficient, convenient synthesis of novel medium-sized 13 H -dibenzo[ d , h ][1,3,7]oxadiazecine-8,14-dione macrolides as anticipated antineoplastic agents
摘要:
A series of novel medium-sized 13H-dibenzo[d,h][1,3,7]oxadiazecine-8,14-dione macrolides (18-27, 30, 32) were synthesized in an ongoing effort to develop new antineoplastic agents. The synthon 2-(2-aminobenzoylamino)-benzoic acid. (7), for preparation of the target compounds, was prepared via the reaction of isatoic anhydride 5 and anthranilic acid 6. Nine compounds (18-20 24-27, 30. 32) were subjected to National Cancer Institute (NCI) in vitro disease-oriented human cells screening panel assay. Among the compounds tested 6-benzyl-13H-dibenzo[d,h][1,3,7]oxadiazecine-8, 14-dione (26, NSC 721327), bearing the benzyl group at position 6, showed cytotoxic activity and subpanel selectivity against leukemia (CCRF-CEM), colon (HCC-2998), CNS (SNB-75) and melanoma (UACC-257) panels at log(10) GI(50) (M), compound concentration that inhibits 50% of cell growth, ranging from -4.08 to -4,59. (C) 2002 Elsevier Science Ltd. All rights reserved.