Synthesis of Novel 4,1-Benzoxazepine Derivatives as Squalene Synthase Inhibitors and Their Inhibition of Cholesterol Synthesis
作者:Takashi Miki、Masakuni Kori、Hiroshi Mabuchi、Ryu-ichi Tozawa、Tomoyuki Nishimoto、Yasuo Sugiyama、Koichiro Teshima、Hidefumi Yukimasa
DOI:10.1021/jm020234o
日期:2002.9.1
for squalene synthase and cholesterol synthesis in the liver was investigated. Among these compounds, the glycine derivative 3a and beta-alanine derivative 3f exhibited the most potent inhibition of squalene synthase prepared from HepG2 cells (IC(50) = 15 nM). On the other hand, the piperidine-4-acetic acid derivative 4a, which was prepared by acetylation of 3j, was the most effective inhibitor of cholesterol
进行了3位羧基的修饰,并将保护基引入到4,1-苯并氮杂pine庚因衍生物2(代谢物为1)的羟基上,并抑制了鲨烯合酶和肝脏胆固醇的合成被调查了。在这些化合物中,甘氨酸衍生物3a和β-丙氨酸衍生物3f对从HepG2细胞制备的鲨烯合酶表现出最强的抑制作用(IC(50)= 15 nM)。另一方面,通过3j乙酰化制备的哌啶-4-乙酸衍生物4a是大鼠肝脏中胆固醇合成的最有效抑制剂(ED(50)= 2.9 mg / kg,口服)。口服后,4a被吸收并迅速水解为脱酰3j。化合物3j主要在肝脏中检测到,但发现血浆3j较低。发现化合物3j和4a相对于焦磷酸法呢酯是竞争性抑制剂。4a作为降胆固醇和抗动脉粥样硬化剂的进一步评估正在进行中。