Synthesis and Antitumor Activity of Novel Pyrimidinyl Pyrazole Derivatives. II. Optimization of the Phenylpiperazine Moiety of 1-[5-Methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-3-phenylpiperazinyl-1-trans-propenes

Autor: Eiji Kumazawa, Satoru Ohsuki, Masamichi Sugimori, Hiroyuki Naito, Ryo Atsumi, Yoshihide Nakamura, Megumi Minami, Akio Ejima, Mineko Ishii, Kenji Hirotani
Rok vydání: 2002
Předmět:
Zdroj: Chemical and Pharmaceutical Bulletin. 50:453-462
ISSN: 1347-5223
0009-2363
Popis: A series of novel 3-substituted-1-[5-methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-1-trans-propenes in order to improve the in vitro and in vivo activity of our prototype 3-[4-(3-chlorophenyl)-1-piperazinyl]-1-[5-methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-1-trans-propene (2) were synthesized and evaluated by assays of growth inhibition against several tumor cell lines in vitro and antitumor activity against some tumor models when dosed both intraperitoneally and orally in vivo. Compounds 7a and 7e, the 3,5-difluorophenyl and 3,5-dichlorophenyl analogues of 2, respectively, showed significantly more potent cytotoxicity than 2 in vitro and potent antitumor activities without causing decrease of body temperature related to side effects.
Databáze: OpenAIRE