中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
[3aS-(3aα,5aβ,6aβ,6bα)]-4-溴-3a,5a,6a,6b-四氢-2,2-二甲基环氧乙烷并[e]-1,3-苯并二茂 | (1S,2S,5R,6R)-3-bromo-5,6-epoxy-1,2-O-isopropylidencyclohex-3-en-1,2-diol | 130669-74-8 | C9H11BrO3 | 247.089 |
—— | (3aS,7aS)-4-bromo-2,2-dimethyl-3a,7a-dihydro-1,3-benzodioxole | 130669-75-9 | C9H11BrO2 | 231.089 |
A total synthesis of (+)-galanthamine [(+)-1] has been achieved using the readily available and enantiomerically pure metabolite 2 as starting material. The quaternary carbon centre (C8a) associated with target 1 was constructed using the Eschenmoser–Claisen rearrangement reaction.