Synthesis of 3-deoxy-2-octulosonic acid derivatives and characterisation of their 3-deoxyoctitols
作者:Thomas Krülle、Richard R. Schmidt、Helmut Brade、Otto Holst
DOI:10.1016/0008-6215(94)84248-5
日期:1994.2
Abstract The diethyl dithioacetals of d -altrose, d -idose,, and d -talose were used to synthesise the respective O-benzyl aldehydo-sugars as intermediates for the synthesis of 3-deoxy- d -glycero- d -gluco / manno-3-deoxy- d -glycero- l -gulo / ido-, and 3-deoxy- d -glycero- l -allo / altro-octonate derivatives, respectively. After reduction and deprotection, the respective 3-deoxyoctitols were obtained
摘要用d-altrose,d-idose和d-talose的二乙基二硫缩醛合成了各自的O-苄基醛糖作为中间体,合成了3-deoxy-d-glycero-d-gluco / manno- 3-脱氧-d-甘油-1-古洛糖/碘-和3-脱氧-d-甘油-1-古洛糖/α-辛酸酯衍生物。还原和脱保护后,获得相应的3-脱氧辛醇。为了合成3-脱氧-d-甘油-1-半乳糖/ talo-辛醇,通过还原和选择性氧化转化2,3:5,6-二-O-异亚丙基-d-gulono-1,4-内酯。将C-1转化为醛-d-果糖,由此合成了3-脱氧-d-甘油-1-半乳糖/ talo-辛酸盐。羧基和羰基的还原和脱保护得到3-脱氧辛醇。3-脱氧辛醇通过乙酰化和甲基化形式的GLC和GLC-MS表征。此处提供的数据和较早发布的数据[T. Krulle,O。Holst,H。Brade和RR Schmidt,糖。Res。,247(1993)145