Diterpenoids of terrestrial origin.

Area of Science:

• Natural Product Chemistry
• Organic Chemistry

Background:

• Diterpenoids represent a diverse class of natural products with significant structural complexity.
• Terrestrial sources are rich reservoirs for novel diterpenoid discovery.
• Previous reviews have established a foundation for tracking diterpenoid research.

Purpose of the Study:

• To comprehensively review the isolation and chemical characterization of terrestrial diterpenoids.
• To cover the period from January to December 2013.
• To provide an updated overview of diterpenoid chemistry, including various structural subclasses.

Main Methods:

• Literature search and compilation of relevant scientific publications.
• Analysis of reported isolation techniques and structural elucidation methods.
• Categorization of diterpenoids based on their core skeletons (e.g., labdanes, clerodanes).

Main Results:

• Compilation of 179 references detailing diterpenoid research.
• Inclusion of various diterpenoid subclasses such as labdanes, clerodanes, abietanes, pimaranes, kauranes, and cembranes.
• Discussion of cyclization products and their chemical properties.

Conclusions:

• The year 2013 saw continued significant contributions to the field of terrestrial diterpenoid chemistry.
• The diversity of diterpenoid structures and their origins highlights ongoing research potential.
• This review serves as a valuable resource for researchers in natural product chemistry.