1、Diterpene resin acids in conifers
Diterpene resin acids are a significant component of conifer oleoresin, which is a viscous mixture of terpenoids present constitutively or inducibly upon herbivore or pathogen attack and comprises one form of chemical resistance to such attacks.
2、Evolution of Diterpene Metabolism: Sitka Spruce CYP720B4 Catalyzes
Diterpene resin acids (DRAs) are specialized (secondary) metabolites of the oleoresin defense of conifers produced by diterpene synthases and cytochrome P450s of the CYP720B family.
3、Diterpene Resin Acids and Olefins in Calabrian Pine
A quali-quantitative analysis of diterpenoid composition in tissues obtained from different organs of Pinus nigra subsp. laricio (Poiret) Maire (Calabrian pine) was carried out. Diterpene resin acids were the most abundant diterpenoids across all the examined tissues.
4、Diterpene Resin Acids and Olefins in Calabrian Pine (
In the present study, we carried out for the first time, to the best of our knowledge, a quali-quantitative analysis of diterpenoids composition in different tissues of Calabrian pine via conventional gas chromatography-mass spectrometry (GC-MS).
Stereospecific syntheses of epimeric diterpenoid. Resin acids through
Enantioselective Palladium-Catalyzed Dearomative Cyclization for the Efficient Synthesis of Terpenes and Steroids.
Structures of characteristic diterpenoid resin acids found in pine
Comparison of the diterpenoid components found in bone fragments from the Old Kingdom, the mummy of Idu II (Hildesheim) and from the Junker excavation at Giza (Vienna) with the pine resin...
Characterising terpenic plant resins, wood tars and pitches in heritage
Particular attention is given to diterpenoid and triterpenoid resins and to chemical transformations induced by ageing, degradation and thermal processing.
"Geographical variations and correlation among some chemical and therma
DSC revealed the semi-crystalline nature of almaciga resin and melting temperatures similar to diterpenoid resin acids. This is attributed to the presence of increasing amounts of oxidized abietic acids as shown by gas chromatography-mass spectrometry (GCMS).
The biosynthesis of diterpenoids from plants
的C-O 105 时,二萜合酶被分成13类。在此阈值下,植物来源的二萜 .
Plant diterpene synthases: exploring modularity and metabolic diversity
Plants produce thousands of diterpenoid natural products; some of which are of significant industrial value as biobased pharmaceuticals (taxol), fragrances (sclareol), food additives (steviosides), and commodity chemicals (diterpene resin acids).
In nature, there exist numerous awe-inspiring chemical phenomena and substances that not only enrich our scientific knowledge but also provide endless inspiration. Among them, diterpenoid resin acids have become a focal point in chemical research due to their unique structures and properties.
Diterpenoid resin acids are a class of compounds composed of multiple carbon atoms, characterized by complex structures that typically include two or more fused cyclopentane rings, forming an extensive polycyclic system. This structure endows diterpenoid resin acids with a series of distinctive properties, such as high asymmetry, diverse reactivity, and complex biological activities.
Research on diterpenoid resin acids began in the early 20th century. Scientists gradually unveiled their mysteries through the isolation and identification of various natural diterpenoid resin acids. For example, compounds like glucosides and syringoside, isolated from the plant kingdom, are not only important natural products but also valuable resources for drug development.
The synthesis of diterpenoid resin acids involves diverse methods, most of which rely on chemical reaction principles. In laboratories, scientists can obtain target products through organic synthesis, starting from simple materials and undergoing a series of reaction steps. For instance, condensation reactions are commonly used to prepare diterpenoid resin acids. This approach is straightforward and allows for effective control of reaction conditions, improving yield efficiency.
Characterizing the properties of diterpenoid resin acids poses significant challenges in chemistry. Due to their structural complexity, direct analysis and characterization are difficult. To overcome this, advanced techniques such as nuclear magnetic resonance (NMR), mass spectrometry (MS), and infrared spectroscopy (IR) have been employed to elucidate their structures. These studies have deepened our understanding of diterpenoid resin acids and laid a foundation for further research and applications.
In terms of biological activity, diterpenoid resin acids exhibit tremendous potential. Many compounds in this class possess anti-inflammatory, antibacterial, and antitumor properties, making them a hot topic in pharmaceutical research. For example, syringoside is an effective anticancer agent that inhibits tumor cell growth and proliferation, offering new possibilities for cancer treatment.
Beyond medicinal applications, diterpenoid resin acids play important roles in agriculture and industry. In agriculture, these compounds can function as pesticides or fungicides to protect crops from diseases and pests. In industry, they serve as catalysts or additives in coatings, plastics, and rubber, enhancing product performance and quality.
ongoing research and application of diterpenoid resin acids also face challenges. Issues such as improving yield and purity, optimizing synthesis routes to reduce costs, and enhancing stability and solubility remain unresolved.
diterpenoid resin acids represent a critical branch of chemistry. Their study not only expands our understanding of the natural world but also brings countless benefits and innovations to human life. With advancements in science and technology, we will likely unlock greater potential from this precious resource, contributing further to human society.
