Novel 5-azido-5-deoxy-2: 3-isopropylidene-D-arabinose compounds, methods for their preparation and their use for the synthesis of Ara-N3, Kdo-N3 and 4eKdo-N3

摘要

According to the present invention, wherein R1 and R2 are independently H, C1-C6 alkyl, such as methyl, ethyl, propyl, butyl, aryl, such as phenyl, para-methoxyphenyl. Or R 1, R 2 together with carbon C-6 can be cyclopentylidene or cyclohexylidene, each of these groups is substituted or unsubstituted and R 3 is C 1- Can be C6 alkyl, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary-butyl, pentyl, or aryl, such as phenyl, methylphenyl, ethylphenyl, each of which is substituted Or, it relates to a novel compound which is not substituted. The invention also relates to their production process and their use for the synthesis of Ara-N3, Kdo-N3 and 4eKdo-N3.