4-0-isopropylidene-2-0-trifluoromethanesulphonyl-D-galactopyranosides and with methyl 6-0-(-butyldiphenyl)silyl-3,4-0-isopropylidene-2-0-trifluoromethane-sulphonyl-α-D-altropyranoside give, respectively, intermediates suitable for the stereospecific synthesis of α- and β-C-nucleosides.
叠氮化
钠与甲基6-0-(-丁基二苯基)甲
硅烷基-3,4-0-异亚丙基-2-0-三
氟甲磺酰基-D-
吡喃半
乳糖苷与甲基6-0-(-丁基二苯基)甲
硅烷基-3,4的反应-0-异亚丙基-2-0-
三氟甲烷-磺酰基-α-D-阿托
吡喃糖苷分别提供适合于立体定向合成α-和β-C-核苷的中间体。