Synthesis and Detailed Examination of Spectral Properties of (S) and (R)-Higenamine 4′-O-β-d-Glucoside and HPLC Analytical Conditions to Distinguish the Diastereomers
作者:Eisuke Kato、Ryohei Iwata、Jun Kawabata
DOI:10.3390/molecules22091450
日期:——
receptor agonist activity. Study of the biosynthesis of higenamine has shown the participation of norcoclaurine synthase, which controls the stereochemistry to construct the (S)-isomer. However, when isolated from nature, higenamine is found as the racemate, or even the (R)-isomer. We recently reported the isolation of higenamine 4′-O-β-d-glucoside. Herein, its (R)- and (S)-isomers were synthesized and compared
Higenamine 是一种四氢异喹啉,存在于多种植物中,具有 β-肾上腺素能受体激动剂活性。对higenamine 生物合成的研究表明,去甲紫杉碱合酶参与控制立体化学以构建(S)-异构体。然而,当从自然界中分离出来时,higenamine 被发现是外消旋物,甚至是 (R)-异构体。我们最近报道了higenamine 4'-O-β-d-葡萄糖苷的分离。在此,合成并比较了其 (R)-和 (S)-异构体,以精确确定分离物的立体化学。由于它们相似的光谱特性,基于 NMR 数据确定立体化学被认为是不合适的。因此,建立了高效液相色谱法分离异构体,