Antitumor Agents. VII. Synthesis and Antitumor Activity of Novel Hexacyclic Camptothecin Analogs
作者:Masamichi Sugimori、Akio Ejima、Satoru Ohsuki、Kouichi Uoto、Ikuo Mitsui、Kensuke Matsumoto、Yasuyoshi Kawato、Megumi Yasuoka、Keiki Sato
DOI:10.1021/jm00045a007
日期:1994.9
pentacyclic derivatives of camptothecin were synthesized and evaluated for in vitro cytotoxic activity against P388, HOC-21, and QG-56 and in vivo antileukemic activity against P388 in mice. Hexacyclic compounds which have an additional 5-, 6-, or 7-membered ring cyclized at positions 7 and 9 of camptothecin were prepared by intramolecular cyclization of pentacyclic camptothecin derivatives or Friedländer
A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumor activity and a high degree of safety, and can be applied as an antitumor medicine for curing tumors of various kinds.
Macrocyclic benzofused pyrimidine compounds, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions and disorders using such compounds and compositions are described herein.
Method for treating leukemia with a hexa-cyclic compound
申请人:Daiichi Pharmaceutical Co., Ltd.
公开号:US05770605A1
公开(公告)日:1998-06-23
A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumor activity and a high degree of safety, and can be applied as an antitumor medicine for curing tumors of various kinds.
Macrocyclic benzofused pyrimidine compounds, compositions comprising such compounds, methods for making the compounds, and methods of treating and preventing the progression of diseases, conditions and disorders using such compounds and compositions are described herein.