A practical synthesis of Kdn2en and 4-amino-4-deoxy-Kdn2en has been achieved via a key intermediate, methyl 4,5,7,8,9-penta-O-acetyl-2,6-anhydro-3-deoxy-D-glycero-D-galacto-non-2- enonate, which has been prepared from Kdn in three steps in 91% overall yield.
已通过关键中间体甲基4,5,7,8,9-戊-O-乙酰基-2,6-脱
水3-脱氧-甲基完成了Kdn2en和4-
氨基-4-脱氧-Kdn2en的实用合成。 D-
甘油-
D-半乳糖-非-2-烯酸酯,它是由Kdn分三步制备的,总产率为91%。