Confirmation of structure and absolute stereochemistry of 9-epi-β-caryophyllene from Dacrydium cupressinum
作者:Simon F.R. Hinkley、Nigel B. Perry、Rex T. Weavers
DOI:10.1016/s0031-9422(00)86882-x
日期:1994.4.19
Abstract The structure of the rare sesquiterpene 9-epi-β-caryophyllene, isolated from the foliage of the New Zealand rimu tree, Dacrydium cupressinum was verified by 2D NMR techniques and the relative stereochemistry determined by NOE studies. The absolute stereochemistry was determined by conversion of both β-caryophyllene and 9-epi-β-caryophyllene into the same known [7,2,0 1,6 ,0 1,9 ] tricyclic
摘要 从新西兰 rimu 树 Dacrydium cupressinum 的叶子中分离出的稀有倍半萜 9-epi-β-caryophyllene 的结构通过 2D NMR 技术和 NOE 研究确定的相对立体化学进行了验证。通过将 β-石竹烯和 9-epi-β-石竹烯转化为相同的已知 [7,2,0 1,6 ,0 1,9 ] 三环化合物来确定绝对立体化学。β-石竹烯和 9-epi-β-石竹烯最低能量构象的分子建模结果与实验结果一致。