Two New Pyrrolidine Alkaloids, Radicamines A and B, as Inhibitors of .ALPHA.-Glucosidase from Lobelia chinensis LOUR.
作者:Makio SHIBANO、Daisuke TSUKAMOTO、Atsuko MASUDA、Yasuko TANAKA、Genjiro KUSANO
DOI:10.1248/cpb.49.1362
日期:——
Two new pyrrolidine alkaloids, radicamines A and B were isolated as inhibitors of α-glucosidase from Lobelia chinensis LOUR. (Campanulaceae). Radicamines A and B were formulated as (2S,3S,4S,5S)-2-hydroxymethyl-3,4-dihydroxy-5-(3-hydroxy-4-methoxyphenyl)-pyrrolidine (1) and (2S,3S,4S,5S)-2-hydroxymethyl-3,4-dihydroxy-5-(4-hydroxyphenyl)-pyrrolidine (2) on the basis of spectroscopic analyses and chemical methods.
从半边莲 (Lobelia chinensis LOUR) 中分离出两种新的吡咯烷生物碱,根胺 A 和 B,作为 α-葡萄糖苷酶的抑制剂。 (桔梗科)。雷迪卡明 A 和 B 配制为 (2S,3S,4S,5S)-2-羟甲基-3,4-二羟基-5-(3-羟基-4-甲氧基苯基)-吡咯烷 (1) 和 (2S,3S,4S ,5S)-2-羟甲基-3,4-二羟基-5-(4-羟苯基)-吡咯烷(2) 基于光谱分析和化学方法。