作者:Mohamed A. Saleh、Mohamed F. Abdel‐Megeed
DOI:10.1081/car-120020479
日期:2003.1.5
Reaction of 4‐aryl‐1‐thioxo [1,2,4] triazolo [4,3‐a] quinazolin‐5 (4H)‐ones (2a,b) with acetylated glycosyl bromides 3a–c under alkaline conditions afforded the corresponding S‐glycoside derivatives 4, 5 and N‐glycoside derivatives 6, 7. Oxidation of S‐glycosyl derivatives 4, 5 with m‐chloroperbenzoic acid yielded the corresponding sulphones 8, 9, whereas the N‐glycosyl derivatives 6, 7 yielded 1‐oxo
在碱性条件下,4-芳基-1-硫代[1,2,4]三唑[4,3-a]喹唑啉-5(4H)-1(2a,b)与乙酰化糖基溴化物3a – c反应得到相应的小号糖苷衍生物4,5和ñ糖苷衍生物6,7。的氧化小号α-糖基衍生物4,5与米氯过苯甲酸,得到相应的砜8,9,而Ñ α-糖基衍生物6,7得到1-氧代衍生物10,11。然而,它们的直径: -deacetylation与甲醇钠在甲醇中引起的裂解小号α-糖基残基,并给Ñ 2 -glycosylated类似物12,13,14和15。