Results 31 to 40 of about 873 (161)
The Plant Journal, Volume 104, Issue 3, Page 693-705, November 2020., 2020 SUMMARY Serrulatane diterpenoids are natural products found in plants from a subset of genera within the figwort family (Scrophulariaceae). Many of these compounds have been characterized as having anti‐microbial properties and share a common diterpene backbone.
Garret P. Miller +5 more
wiley +1 more source
An Unexpected Transannular [4+2] Cycloaddition during the Total Synthesis of (+)‐Norcembrene 5
Angewandte Chemie International Edition, Volume 59, Issue 14, Page 5521-5525, March 27, 2020., 2020 They may look alike… During studies toward the total synthesis of the norditerpene natural product norcembrene 5, one diastereomer of a key intermediate (α‐OAc at C13) underwent clean and spontaneous Diels–Alder cycloaddition at room temperature (see scheme).
Michael Breunig, Po Yuan, Tanja Gaich
wiley +1 more source
Natural Cembrane Diterpenoids From the Soft Coral
Natural Product Communications, 2021 Chemical examination of Sinularia querciformis afforded one new cembranoid, querciformolide F ( 1 ), along with four known cembranoids, sinulariolone ( 2 ), granosolide A ( 3 ), querciformolide A ( 4 ), and sinulariolide ( 5 ).
Yi-Ying Wu +7 more
doaj +1 more source
Polyoxygenated Cembrane Diterpenoids from the Soft Coral Sarcophyton ehrenbergi [PDF]
International Journal of Molecular Sciences, 2015 Five new polyoxygenated cembranoids, named (+)-1,15-epoxy-2-methoxy-12-methoxycarbonyl-11E-sarcophytoxide (1), (+)-2-epi-12-methoxycarbonyl-11E-sarcophine (2), 3,4-epoxyehrenberoxide A (3), ehrenbergol D (4) and ehrenbergol E (5), were obtained from the soft coral Sarcophyton ehrenbergi.
Cheng, Shi-Yie +3 more
openaire +2 more sources
EBC‐342: A Novel Tetrahydrofuran Moiety Containing Casbane from the Australian Rainforest
European Journal of Organic Chemistry, Volume 2020, Issue 8, Page 1042-1045, February 28, 2020., 2020 Although well known, the casbane family of natural products are not often isolated from either terrestrial or marine environments. The Australian Rainforest plant Croton insularis has provided a number of interesting casbanes, of which EBC‐342 described herein, is the first to contain a tetrahydrofuran ring.
Lidia A. Maslovskaya +9 more
wiley +1 more source
Marine Drugs, 2018 The ubiquitin-proteasome system (UPS) is a major proteolytic pathway that safeguards protein homeostasis. The main 26S proteasome consists of a 20S catalytic core proteasome and a 19S substrate recognition proteasome.
Xue-Hua Ling +4 more
doaj +1 more source
Terpenoids from the Octocorals Menella sp. (Plexauridae) and Lobophytum crassum (Alcyonacea)
Marine Drugs, 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.
Zhi-Hong Wen +8 more
doaj +1 more source
A macrolactonisation approach to the cembrane carbocycle of bielschowskysin
Tetrahedron Letters, 2013 By judicious choice of a conformationally constraining unit to predispose cyclisation to a 15-membered ring, we present a straightforward strategy to a cembranolide precursor of bielschowskysin by the Sonogashira coupling of two readily prepared fragments (from D-glucose and L-malic acid) followed by a facile beta-acylketene macrolactonisation reaction.
Yang, E.G., Sekar, K., Lear, M.J.
openaire +2 more sources
New Anti-Inflammatory Cembranes from the Cultured Soft Coral Nephthea columnaris
Marine Drugs, 2015 Two new cembranes, columnariols A (1) and B (2), were isolated from the cultured soft coral Nephthea columnaris. The structures of cembranes 1 and 2 were elucidated by spectroscopic methods.
Ting-Hsi Hsiao +7 more
doaj +1 more source
Cembrane diterpenes as chemotaxonomical markers for Sinularia flexibilis
Journal of Tropical Biology & Conservation (JTBC), 2023 Chemical extraction of the soft coral Sinularia flexibilis collected from Mantanani Island, Kota Belud, Sabah has led to the isolation of ten known cembrane diterpenes. The chemical structures of isolated compounds were elucidated based on 1H-NMR and 13C-NMR spectroscopic data. This is the first record of chemical analysis of S.
Kishneth Palaniveloo +2 more
openaire +1 more source