Structure–activity relationship study on α1 adrenergic receptor antagonists from beer
作者:Toshiyuki Wakimoto、Makoto Nitta、Kana Kasahara、Taketo Chiba、Ye Yiping、Kuniro Tsuji、Toshiyuki Kan、Haruo Nukaya、Masaji Ishiguro、Minako Koike、Yoshiaki Yokoo、Yoshihide Suwa
DOI:10.1016/j.bmcl.2009.08.068
日期:2009.10
enantiomer of hordatine A and aperidine from optically pure dehydrodi-p-coumaric acid. Several additional related compounds were also synthesized for structure–activity relationship studies. Chiral column HPLC analysis demonstrated that the absolute stereochemistry of natural hordatine A is (2S,3S), while based on the isomerization mechanism, the stereochemistry of aperidine is (2R,3S). The α1A adrenoceptor
以前已从啤酒中分离出霍尔达汀A和阿哌替丁作为与毒蕈碱M 3受体结合的活性成分。另外,这些化合物显示出对α1A肾上腺素受体的拮抗活性。尽管这两个分子的相对结构先前已经确定,但绝对立体化学尚不清楚。因此,为了阐明天然大麦碱A的绝对立体化学,我们从旋光纯的脱氢二-对-香豆酸中合成了大麦碱A和Aperidine的每个对映异构体。还合成了几种其他相关化合物用于结构-活性关系研究。手性色谱柱HPLC分析表明,天然大麦碱A的绝对立体化学为(2 S,3S),虽然基于异构化机理,但哌啶的立体化学为(2 R,3 S)。的α 1A的肾上腺素能受体的结合活性(2 - [R,3 - [R)-hordatine A为对映体对hordatines和aperidines中最有效的。此外,相关的合成化合物(2 R,3 R)-苯并呋喃甲酸甲酯在比大麦碱A更低的浓度下表现出对α1A肾上腺素受体的拮抗活性。