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.
作者:Hiroyuki Naito、Satoru Ohsuki、Masamichi Sugimori、Ryo Atsumi、Megumi Minami、Yoshihide Nakamura、Mineko Ishii、Kenji Hirotani、Eiji Kumazawa、Akio Ejima
DOI:10.1248/cpb.50.453
日期:——
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.
为提高原型化合物3-[4-(3-氯苯基)-1-哌嗪基]-1-[5-甲基-1-(2-嘧啶基)-4-吡唑基]-1-反式-丙烯(2)的体外和体内活性,合成了一系列新型的3-取代-1-[5-甲基-1-(2-嘧啶基)-4-吡唑基]-1-反式-丙烯,并通过体外对几种肿瘤细胞系的生长抑制试验和体内对某些肿瘤模型的抗肿瘤活性试验(经腹腔和口服给药)进行了评估。化合物7a和7e,分别是2的3,5-二氟苯基和3,5-二氯苯基类似物,其体外细胞毒性显著强于2,并有较强的抗肿瘤活性,且不会因副作用导致体温下降。