作者:Peter Fügedi、Winnie Birberg、Per J. Garegg、Åke Pilotti
DOI:10.1016/0008-6215(87)80137-4
日期:1987.7
Abstract Syntheses are described of a d -glucose heptasaccharide 1 , corresponding to a glucan structure recognised by the soybean when infected by the fungus Phytophthora megasperma f. sp. glycinea and which stimulates the formation of phytoalexins. The synthetic strategy is based upon 1,2- trans -glycoside formation assisted by participating benzoate groups in the 2-position, with silver triflate
摘要描述了ad-葡萄糖七糖1的合成,其对应于被真菌疫霉疫霉f感染时大豆识别的葡聚糖结构。sp。甘氨酸和刺激植物抗毒素的形成。合成策略基于1,2-反-糖苷的形成,其协助是通过在2位上参与苯甲酸酯基团的形成,其中三氟甲磺酸银为促进剂,糖基溴化物为制备较小片段的供体,三氟甲磺酸甲酯为促进剂,硫代糖苷为原料。捐助更大的捐助者。4,6-亚苄基乙缩醛的区域选择性还原开口在获得在O-4处具有苄基保护的游离6-OH基团中起着关键作用。