Synthesis of N-[2-O-(2-acetamido-2,3-dideoxy-5-thio-d-glucopyranose-3-yl)-d-lactoyl]-l-alanyl-d-isoglutamine
作者:Akira Hasegawa、Makoto Kiso、Ichiro Azuma
DOI:10.1016/0008-6215(83)88410-9
日期:1983.10
Abstract N-[2-O-(2-Acetamido-2,3-dideoxy-5-thio- d -glucopyranose-3-yl)- d -lactoyl]- l -alanyl- d -isoglutamine, in which the ring-oxygen atom of the sugar moiety in N-acetylmuramoyl- l -alanyl- d -isoglutamine (MDP) has been replaced by sulfur, was synthesized from 2-acetamido-2-deoxy-5-thio-α- d -glucopyranose (1). O-Deacetylation of the acetylated acetal, derived from the methyl α-glycoside of
摘要N- [2-O-(2-乙酰胺基-2,3-二脱氧-5-硫代-d-吡喃葡萄糖-3-基)-d-乳酰基] -1-丙氨酰基-d-异谷氨酰胺,其中环- N-乙酰基muramoyl-1-丙氨酰基-d-异谷氨酰胺(MDP)中糖部分的氧原子已被硫取代,是由2-乙酰氨基-2-脱氧-5-硫代-α-d-吡喃葡萄糖合成的(1) 。乙酰化乙缩醛的O-脱乙酰化,通过4,6-O-异亚丙基化由1的甲基α-糖苷衍生而来,随后乙酰化,得到2-乙酰氨基-2-脱氧-4,6-O-异亚丙基-5-硫代甲基-α-d-吡喃葡萄糖苷(4)。4与1 -2-氯丙酸缩合,然后酯化,得到相应的酯,将其通过O-去异亚丙基化,乙酰化和乙酰化转化为2-乙酰氨基-1,4,6-tri-O-乙酰基- 2-脱氧-3-O- [d -1-(甲氧羰基)乙基] -5-硫代-α-d-吡喃葡萄糖(12)。