polyterpenes

The higher terpenoids or polyterpenes, which occur in great variety in the vegetable kingdom, were originally the main subject of Ruzicka's investigations, and the extremely difficult determination of their structure has been made possible through his exceptional experimental skill.

Nobel Prize in Chemistry 1939 - Presentation Speech 1966

The pioneering work of Ruzicka and his co-workers has led to thorough investigations of a very large number of important polyterpenes.

Nobel Prize in Chemistry 1939 - Presentation Speech 1966

Many interesting relationships exist between the polyterpenes studied by Ruzicka and a series of physiologically and medicinally important groups of compounds, viz. the bile acids, the sterols and the sex hormones.

Nobel Prize in Chemistry 1939 - Presentation Speech 1966

Apart from the terpenes proper, he also investigated and scientifically characterized various previously known or newly discovered natural products, such as alcohols, ketones, sesquiterpenes and polyterpenes belonging to the terpene series, which in part are also of great significance in biological and technical respects.

Nobel Prize in Chemistry 1910 - Presentation Speech 1966