Treatment of the chloro-nitro-ribofuranose 7 with KPO(OMe)2 gave the O-amino phosphate 8 (5 %) and the nitrile 9 (62 %). Compound 9 was also obtained by the reaction of 8 with KPO(OMe)2, and its structure was established by X-ray analysis. Treatment of the chloro-nitro-mannofuranose 10, the bromo-nitro-ribofuranose 14, or the bromo-nitro-mannofuranose 16, respectively, with the K or Na salt of HPO(OMe)2
用KPO(OMe)2处理
氯-硝基-
呋喃核糖7,得到O-
氨基
磷酸酯8(5%)和腈9(62%)。化合物9还通过8与KPO(OMe)2的反应获得,并且其结构通过X射线分析确定。用HPO(OMe)2的K或Na盐分别处理
氯硝基硝基
呋喃呋喃糖10,
溴硝基硝基
呋喃呋喃糖14或
溴硝基硝基
呋喃呋喃糖16也导致O-
氨基
磷酸酯和腈。(1- C从
氯-硝基-
甘露糖呋喃糖10和KPO(OEt)2一起获得-(硝基糖基)
膦酸酯22(21%)和腈21(51%)。的1-反应Ç -nitroglycosyl砜25(NO 2 -基内)与KPO(OET)2,得到(1- Ç -nitroglycosyl)
膦酸22(61%)和腈21(11%),而异头砜26(NO 2 -基团外)得到22(15%)和21(58%)。在[18] Crown-6的存在下,端基异构体25和26的混合物以67%的产率得到(1- C-硝基糖基)
膦酸酯22和21(1