摘要
以1,3,4,6-四-O-苄基-β-D-氨基葡萄糖盐酸盐(1),2-硫代喹唑啉二酮(2a~2g)和固体光气为原料,采用一锅法合成了7个含氨基葡萄糖分子片段的2-硫代喹唑啉二酮衍生物(3a~3g),其结构经1H NMR,FT-IR和HR-ESI-MS确证。在最佳反应条件[1,2-二氯乙烷为溶剂,三乙胺为碱,1 3mmol,n(1)∶n(2b)=1.0∶1.1,回流反应8 h]下,3b收率82%。
Seven 2-thioquinazolinedione derivatives(3a ~ 3g) containing glucosamine molecular fragments were synthesized by one-pot method using 1,3,4,6-tetra-O-benzyl-β-D-glucosamine hydrochloride(1),2-thioxoquinazolinediones(2a ~ 2g) and solid phosgene as the materials.The structures were confirmed by1 H NMR,FT-IR and HR-ESI-MS.Under the optimum reaction conditions[1,2-dichloroethane as the solvent,triethylamine as the alkali,1 3 mmol,n(1) ∶ n(2b)=1.0 ∶ 1.1,reflux for 8 h],the yield of 3b was 82%.
引文
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