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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Two new diterpene phenols from Calocedrus decurrans
Sheeba Veluthoor1, Shujun Li, Rick G Kelsey
1Wood Science & Engineering, Oregon State University, Corvallis, OR 97331-5751, USA. sheeba.veluthoor@gmail.com
Researchers identified two novel p-cymene diphenols and libocedroquinone from Calocedrus decurrans heartwood. A new nomenclature system for related compounds was also proposed.
Area of Science:
- Natural Product Chemistry
- Organic Chemistry
- Phytochemistry
Background:
- Calocedrus decurruns heartwood is a source of various bioactive compounds.
- Oligomeric p-cymene derivatives represent a class of natural products with potential biological activities.
- Understanding the chemical diversity of plant secondary metabolites is crucial for discovering new therapeutic agents.
Purpose of the Study:
- To isolate and characterize new p-cymene based diphenols from Calocedrus decurrans.
- To report the first isolation of libocedroquinone as a natural product.
- To propose a novel nomenclature system for oligomeric p-cymene derivatives.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation employing 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy.
- High-resolution Mass Spectrometry (HRMS) for accurate mass determination.
Main Results:
- Two new p-cymene based diphenols, compounds (1-2), were successfully isolated and characterized.
- Libocedroquinone (3) was identified as a natural product for the first time.
- The structural data supported the proposed nomenclature system for related compounds.
Conclusions:
- The study expands the knowledge of p-cymene derivatives found in nature.
- The newly identified compounds and nomenclature system contribute to the field of natural product chemistry.
- Further investigation into the biological activities of these compounds is warranted.
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