Artarborol, a nor-Caryophyllane Sesquiterpene Alcohol from Artemisia arborescens. Stereostructure Assignment through Concurrence of NMR Data and Computational Analysis
摘要:
A nor-caryophyllane derivative, artarborol, has been isolated from wormwood (Artemisia arborescens) and its stereostructure established by using a combination of chemical derivatization, NMR data, molecular modeling, and quantum-mechanical calculations. In particular, comparison of experimental C-13 NMR data with a Boltzmann-weighed average of C-13 NMR chemical shifts, calculated by ab initio DFT method, supported the stereochemical assignment.
Biotransformation of Caryophyllene Oxide by <i>Botrytis cinerea</i>
作者:Rosa Duran、Elena Corrales、Rosario Hernández-Galán、Isidro G. Collado
DOI:10.1021/np980104b
日期:1999.1.1
Biotransformation of caryophyllene oxide (1) with B. cinerea afforded 15 products (2-16). Ten of these (3-5, 7, 9-11, and 14-16) are reported here for the first time. The main reaction paths involved stereoselective epoxidation at C-8/C-13 and hydroxylation at C-7. A rearranged compound was found, which was a cyclization product 16 possessing the caryolane skeleton.
Artarborol, a <i>nor</i>-Caryophyllane Sesquiterpene Alcohol from <i>Artemisia </i><i>arborescens</i><i>.</i> Stereostructure Assignment through Concurrence of NMR Data and Computational Analysis
A nor-caryophyllane derivative, artarborol, has been isolated from wormwood (Artemisia arborescens) and its stereostructure established by using a combination of chemical derivatization, NMR data, molecular modeling, and quantum-mechanical calculations. In particular, comparison of experimental C-13 NMR data with a Boltzmann-weighed average of C-13 NMR chemical shifts, calculated by ab initio DFT method, supported the stereochemical assignment.