Synthesis and antitumor activities of 5-methyl-1- and 2-[[2-dimethylaminoethyl]amino]-aza-thiopyranoindazoles
作者:A.Paul Krapcho、Simon N. Haydar、Starlan Truong-Chiott、Miles P. Hacker、E. Menta、G. Beggiolin
DOI:10.1016/s0960-894x(99)00689-7
日期:2000.2
The synthesis of 1- and 2-substituted aza-benzothiopyranoindazoles has been accomplished. The comparisons of the in vitro antitumor activities of the 2-substituted analogues with the benzothiopyranoindazole chemotypes indicate that the positioning of the nitrogen atom at C-9 (9-aza analogue 4d) leads to a substrate with potent antitumor activity. The 1-substituted aza-benzothiopyranoindazoles, in comparison with the corresponding 2-substituted analogues, exhibit a much lower potency. (C) 2000 Elsevier Science Ltd. All rights reserved.