Antirheumatic Agents. II. Novel Methotrexate Derivatives Bearing an Alkyl-Substituted Benzene Ring.
作者:Hiroharu MATSUOKA、Noriaki MARUYAMA、Hiroshi SUZUKI、Toshio KUROKI、Keiichiro TSUJI、Nobuaki KATO、Nobuhiro OHI、Masahiko MIHARA、Yasuhisa TAKEDA、Keiichi YANO
DOI:10.1248/cpb.44.2287
日期:——
Novel methotrexate (MTX) derivatives with either a mono- or dialkyl-substituted benzene ring were synthesized and initially tested for in vitro anti-proliferative activities using human perpheral blood mononuclear cells (hPBMC)derived from healthy volunteers and synovial cells (hSC) derived from patients with rheumatoid arthritis (RA).Compounds with potent activities were further evaluated in an in vivo adjuvant arthritis model. In comparison with MTX, a glutamate derivative 3a was more potent as a suppressor of the in vitro cell proliferation and the in vivo experimental arthritis, and a homoglutamate derivative, 3e, exhibited fairly good activities in vitro and considerable activity in vivo in a dose-dependent manner. As expected, 3e did not act as a substrate of folylpolyglutamate synthetase (FPGS), and thus did not undergo polyglutamation, which is thought to be responsible for side-effects that occur during MTX therapy.
合成了新型甲氨蝶呤(MTX)衍生物,这些衍生物具有单烷基或双烷基取代的苯环,并初步通过来自健康志愿者的外周血单核细胞(hPBMC)和来自类风湿关节炎(RA)患者的滑膜细胞(hSC)对其进行体外抗增殖活性测试。具有较强活性的化合物进一步在体内佐剂性关节炎模型中进行了评估。与MTX相比,氨基酸衍生物3a在体外细胞增殖抑制剂和体内实验性关节炎方面的效力更强,而同氨基酸衍生物3e在体外表现出相当好的活性,并在体内具有显著的剂量依赖性活性。如预期的那样,3e并未作为叶酸多谷氨酸合成酶(FPGS)的底物,因此没有经历多谷氨酸化,这被认为是MTX治疗过程中出现副作用的原因。