Synthesis of<i>α</i>-<scp>L</scp>-Mannopyranosyl-containing Disaccharides and Phenols as Substrates for the<i>α</i>-<scp>L</scp>-Mannosidase Activity of Commercial Naringinase
作者:Sachiko Esaki、Akemi Ohishi、Akiko Katsumata、Naoko Sugiyama、Shintaro Kamiya
DOI:10.1271/bbb.57.2099
日期:1993.1
In order to clarify the substrate specificity of the α-L-mannosidase activity of naringinase (Sigma), the following disaccharides and phenol glycosides were freshly prepared: methyl 2-O-(α-L-mannopyranosyl)β-D-glucoside (1), methyl 3-O-(α-L-mannopyranosyl)-α-D-glucoside (2), methyl 4-O-(α-L-mannopyranosyl)-α-D-glucoside (3), methyl 5-O-(α-L-mannopyranosyl)-β-D-glucoside (4), methyl 6-O-(α-L-mannopyranosyl)-α-Dglucoside (5), 6-O-(α-L-mannpyranosyl)-D-galactose (6), p-nitrophenyl α-L-mannoside (7), and 4-methyl umbelliferone α-L-mannoside (8).These compounds, except for 3 and 5, were hydrolyzed with naringinase.
为了阐明枳椇苷酶(Sigma)α-L-甘露糖苷酶活性的底物特异性,制备了以下几种二糖和酚苷的新鲜样品:甲基 2-O-(α-L-甘露吡喃糖基)β-D-葡糖苷(1)、甲基 3-O-(α-L-甘露吡喃糖基)-α-D-葡糖苷(2)、甲基 4-O-(α-L-甘露吡喃糖基)-α-D-葡糖苷(3)、甲基 5-O-(α-L-甘露吡喃糖基)-β-D-葡糖苷(4)、甲基 6-O-(α-L-甘露吡喃糖基)-α-D葡糖苷(5)、6-O-(α-L-甘露吡喃糖基)-D-半乳糖(6)、对硝基苯 α-L-甘露糖苷(7)和 4-甲基伞形酮 α-L-甘露糖苷(8)。除了 3 和 5 之外,这些化合物均能被枳椇苷酶水解。