Sesquiterpene Cyclizations inside the Hexameric Resorcinarene Capsule: Total Synthesis of δ‐Selinene and Mechanistic Studies
作者:Qi Zhang、Konrad Tiefenbacher
DOI:10.1002/anie.201906753
日期:2019.9.2
capsule was utilized as an artificial cyclase to catalyze the cyclization of sesquiterpenes. With the cyclization reaction as the key step, the first total synthesis of the sesquiterpene natural product δ-selinene was achieved. This represents the first total synthesis of a sesquiterpene natural product that is based on the cyclization of a linear terpene precursor inside a supramolecular catalyst
The role of germacrene D as a precursor in sesquiterpene biosynthesis: investigations of acid catalyzed, photochemically and thermally induced rearrangements
作者:Nils Bülow、Wilfried A König
DOI:10.1016/s0031-9422(00)00266-1
日期:2000.9
Germacrene D is considered as a precursor of many sesquiterpene hydrocarbons. We have investigated the acid catalyzed as well as the photochemically and thermallyinducedrearrangement processes of germacrene D isolated from several Solidago species, which contain both enantiomers of germacrene D. Enantiomeric mixtures of sesquiterpenes of the cadinane, eudesmane (selinane), oppositane, axane, isodaucane
Germacrene D 被认为是许多倍半萜烃的前体。我们研究了从几种一枝黄花物种中分离出的锗烯 D 的酸催化以及光化学和热诱导的重排过程,其中含有锗烯 D 的两种对映异构体。 cadinane、eudesmane (selinane)、oppositane、axane、异十二烷和波旁烷组以及异热菌烯 D 被确定为主要产品,并可作为参考化合物用于植物成分的结构研究和立体化学分配。重排产物之一的 Delta-amorphene 首次被确定为天然产物。γ-阿吗啡的绝对构型通过与锗烯 D 的绝对构型的相关性进行了修正。
Sesquiterpene Synthases from Grand Fir (Abies grandis)
作者:Christopher L. Steele、John Crock、Jörg Bohlmann、Rodney Croteau
DOI:10.1074/jbc.273.4.2078
日期:1998.1
Grandfir (Abiesgrandis) has been developed as a model system for the study of oleoresin production in response to stem wounding and insect attack. The turpentine fraction of the oleoresin was shown to contain at least 38 sesquiterpenes that represent 12.5% of the turpentine, with the monoterpenes comprising the remainder. Assays of cell-free extracts from grandfir stem with farnesyl diphosphate