ribo-decopyranoside, into the known methyl 2,6-diacetamido-2,3,4,6,7,8,9,10-octadeoxy-alpha-D-ribo-d ecopyranoside. The title fortimicin A derivatives, 7'-(3-hydroxypropyl)fortimicin A and 6'-epifortimicin A, have been synthesized by condensation of compound 7 and 8, respectively, with 2,5-di-O-benzoyl-1,4-bis[N-(methoxycarbonyl)]fortamine B, followed by deprotection and introduction of a glycyl group. Their
                                    1,10-Di-0-乙酰基-2,3,4,6,7,8,9-
十七烷氧基-2,6-双(2,4-
二硝基苯基
氨基)-L-lyxo-去复制
果糖(7)和-D -
核糖-去复制
葡糖(8)是由甲基2-乙酰
氨基-2,3,4,6-四脱氧-6-硝基-α-D-赤型-己
吡喃糖苷通过与4-[((
四氢吡喃基)氧基)的硝基羟醛反应制得的
氟化铯存在下]
丁醛及其在C-6的构型已通过转化8的前体即2,2,6-二乙酰胺基-10-O-乙酰基2,3,4,6, 7,8,9-庚氧基-α-
D-核糖-去复制核苷,转变为已知的甲基2,6-二乙酰
氨基-2,3,4,6,7,8,9,10-十八氧基-α-
D-核糖- d ecopyranoside。分别通过化合物7和8与2,5-二-O-苯甲酰基-1,4缩合合成标题fortimicin A衍
生物7'-(3-羟丙基)fortimicin A和6'-epifortimicinA。 -双[N-(甲氧羰基)]强胺B