作者:S. David、A. Veyrières
DOI:10.1016/s0008-6215(00)80826-5
日期:1970.5
route, methyl 2-amino-4,4-dimethoxybutyrate (5) was prepared from dl -aspatic acid. Reduction of 5 with lithium aluminium hydride yielded 3-amino-4-hydroxybutyraldehyde dimethyl acetal (6 from which the N-acetyl derivative 7 and the diethyl dithioacetal 9 could be prepared. Acid hydrolysis of the (S-isome 7′ of compound 7, prepared from l -aspartic acid, yielded the crystalline 3-acetamido-2,3-dideoxy-
摘要用丙二酸乙酯制备了2-氨基-4,4-二乙氧基丁酸乙酯(2)。在另一种方法中,由dl-天冬氨酸制备2-氨基-4,4-二甲氧基丁酸甲酯(5)。用氢化铝锂还原5,得到3-氨基-4-羟基丁醛二甲基乙缩醛(6,可以制备N-乙酰基衍生物7和二乙基二硫缩醛9。酸水解化合物7的(S-异构体7',由1-天冬氨酸制备的产物,得到结晶的3-乙酰氨基-2,3-二脱氧-d-蔗糖(10')。