Total synthesis of cyclomaltooctaose and an isomer of cyclomaltohexaose, cyclo{→6)-[α-d-Glcp-(1→4)]5-α-d-Glcp-(1-}
作者:Yukio Takahashi、Tomoya Ogawa
DOI:10.1016/0008-6215(87)80246-x
日期:1987.11
Abstract The first totalsynthesis of cyclomaltooctaose (gamma-cyclodextrin) is described, in 21 steps starting from maltose, with 0.02% overall yield. A crucial intramolecular cyclization was executed by using a properly protected glucooctaosyl fluoride as a key intermediate. A similar strategy was also applied to the synthesis of an isomer of cyclomaltohexaose (alpha-cyclodextrin), namely cyclo-→6)-[α-