Results 81 to 90 of about 2,095 (251)

Identifikasi Metabolit Sekunder dan Aktivitas Antioksidan Karang Lunak Nephthea sp. Hasil Transplantasi Secara In Situ dan Ex Situ [PDF]

, 2023
AbstrakKarang lunak (Nephthea sp.) menghasilkan metabolit sekunder di habitat aslinya dan dapat dikembangkan menjadi marine natural product (MNP). Nephthea sp. hasil transplantasi diharapkan juga menghasilkan metabolit sekunder yang sama.
Fahrudin, Fahri, Hamida, Fathin, Haribowo, Dinda Rama, Karmila, Rahmi, Pangestu, Danang Aji   +4 more
core   +1 more source

A New Cembranoid from Tobacco, IV *

Zeitschrift für Naturforschung C, 1984
Abstract 4,8-Dimethyl-11-isopropyl-6,8-dihydroxy-pentadeca-4,9-dien-14-on-1-al (3) was identified as a new natural product from tobacco. 3 was isolated from the surface gum of fresh tobacco. The spectral data, chemical properties and the synthesis 3 are given.
Friedlieb Seehofer, Werner Hass, Volker Heemann, Claudius Kahre, Anne-Marie Bylov   +4 more
openaire   +2 more sources

Four New Diterpenoids from the South China Sea Soft Coral Sinularia nanolobata and DFT-Based Structure Elucidation

Molecules, 2023
Three new cembranoids (1–3) and a new casbanoid (4), along with three known analogues (5–7), have been isolated from the soft coral Sinularia nanolobata collected off Ximao Island.
Dan-Dan Yu, Lin-Mao Ke, Jiao Liu, Song-Wei Li, Ming-Zhi Su, Li-Gong Yao, Hui Luo, Yue-Wei Guo   +7 more
doaj   +1 more source

New Cembranoids from Tobacco, II

Zeitschrift für Naturforschung C, 1983
The methylethers 4-O,8-O-dimethyl-(1S, 2E, 4R, 6E, 8S, 11E)-2,6,11-cembratriene-4,8-diol (9), 4-O-methyl-(1S, 2E, 4R, 7E, 11E)-2,7,11-cembratriene-4,6-diol (4) und 4-O,6-O-methyl-(1S, 2E, 4R, 7E, 11E)-2,7,11-cembratriene-4,6-diol (8) were identified as new natural products from tobacco.
Friedlieb Seehofer, Volker Heemann, Werner Hass, Anne-Marie Bylov, Ursula Brümmer   +4 more
openaire   +2 more sources

Protein Targets of Frankincense: A Reverse Docking Analysis of Terpenoids from Boswellia Oleo-Gum Resins

Medicines, 2018
Background: Frankincense, the oleo-gum resin of Boswellia trees, has been used in traditional medicine since ancient times. Frankincense has been used to treat wounds and skin infections, inflammatory diseases, dementia, and various other conditions ...
Kendall G. Byler, William N. Setzer
doaj   +1 more source

Effect of Oxylipins, Terpenoid Precursors and Wounding on Soft Corals’ Secondary Metabolism as Analyzed via UPLC/MS and Chemometrics

Molecules, 2017
The effect of three oxylipin analogues, a terpenoid intermediate and wounding on the secondary metabolism of the soft corals Sarcophyton glaucum and Lobophyton pauciflorum was assessed. Examined oxylipins included prostaglandin (PG-E1), methyl jasmonate (
Mohamed A. Farag, Hildegard Westphal, Tarek F. Eissa, Ludger A. Wessjohann, Achim Meyer   +4 more
doaj   +1 more source

Briarenols W–Z: Chlorine-Containing Polyoxygenated Briaranes from Octocoral Briareum stechei (Kükenthal, 1908)

Marine Drugs, 2021
Briareum stechei is proven to be a rich source of 3,8-cyclized cembranoids (briarane) with a bicyclo[8.4.0] carbon core. In the present study, four previously unreported briaranes, briarenols W–Z (1–4), along with solenolide A (5), briarenolide M (6 ...
You-Ying Chen, Yi-Lin Zhang, Gene-Hsiang Lee, Lun Kelvin Tsou, Mingzi M. Zhang, Hsing-Pang Hsieh, Jih-Jung Chen, Chou-Yuan Ko, Zhi-Hong Wen, Ping-Jyun Sung   +9 more
doaj   +1 more source

Terpenoids from the Octocorals Menella sp. (Plexauridae) and Lobophytum crassum (Alcyonacea) [PDF]

, 2012
A new germacrane-type sesquiterpenoid, menelloide E (1), and a new cembrane-type diterpenoid, lobocrassin F (2), were isolated from the octocorals Menella sp. and Lobophytum crassum, respectively.
Bayer, Blunt, Chai, Chao, Chao, Chao, Chen, Cheng, Cheng-Hung Lee, Chia-Ying Kao, Chih-Han Chang, Deng, Deng, Duh, Fabricius, Fraga, Harper, Hwang, Imbs, Jui-Hsin Su, Kao, Kao, Kao, Lee, Li, Li, Liao, Lin, Lin, Lu, Marrero, Ping-Jyun Sung, Shih-Yao Kao, Tseng, Tsong-Long Hwang, Yu, Yueh-Hsiung Kuo, Zhang, Zhang, Zhi-Hong Wen   +39 more
core   +3 more sources

Total Synthesis of the Marine Diterpenoids Caucanolide E and F by Alkyne gem‐Hydrogenation: Rigorous Reassignment of Two Almost Indistinguishable Diastereomers

Angewandte Chemie International Edition, Volume 64, Issue 18, April 25, 2025.
The application of gem‐hydrogenation, which exploits the electrophilic character of the ruthenium carbene intermediates transiently formed, to natural product total synthesis allowed the stereostructure of a pair of diastereomeric seco‐cembranoids that are almost indistinguishable by NMR to be rigorously assigned.
Ricardo Molina Betancourt, Markus Leutzsch, Alois Fürstner   +2 more
wiley   +1 more source

Promiscuous terpene synthases from Prunella vulgaris highlight the importance of substrate and compartment switching in terpene synthase evolution

New Phytologist, Volume 223, Issue 1, Page 323-335, July 2019., 2019
Summary The mint family (Lamiaceae) is well documented as a rich source of terpene natural products. More than 200 diterpene skeletons have been reported from mints, but biosynthetic pathways are known for just a few of these. We crossreferenced chemotaxonomic data with publicly available transcriptomes to select common selfheal (Prunella vulgaris) and
Sean R. Johnson, Wajid Waheed Bhat, Radin Sadre, Garret P. Miller, Alekzander Sky Garcia, Björn Hamberger   +5 more
wiley   +1 more source