Hypocholesterolemic activity of synthetic and natural tocotrienols.
作者:Bradley C. Pearce、Rex A. Parker、Michael E. Deason、Asaf A. Qureshi、J. J. Kim Wright
DOI:10.1021/jm00098a002
日期:1992.10
reductase by a process distinct from other known inhibitors of cholesterol biosynthesis. An efficient synthetic route to tocotrienols and their isolation from palm oil distillate using an improved procedure is presented. gamma-Tocotrienol exhibits a 30-fold greater activity toward cholesterol biosynthesis inhibition compared to alpha-tocotrienol in HepG2 cells in vitro. The synthetic (racemic) and natural
生育三烯酚是法尼基化的苯并吡喃天然产物,在体外和体内均表现出降胆固醇活性。它们的降血脂作用机制涉及通过不同于胆固醇生物合成的其他已知抑制剂的过程对HMG-CoA还原酶进行转录后抑制。提出了一种有效的合成生育三烯酚的方法,并使用改进的方法将其从棕榈油馏出物中分离出来。与α-生育三烯酚体外的HepG2细胞相比,γ-生育三烯酚对胆固醇生物合成的抑制作用高30倍。合成的(外消旋的)和天然的(手性的)生育三烯酚显示出几乎相同的胆固醇生物合成抑制和HMG-CoA还原酶抑制特性,如在体外和体内证明的那样。