Results 11 to 20 of about 1,611 (171)

Trachylobane and kaurane diterpenes from Croton floribundus spreng [PDF]

open access: yesQuímica Nova, 2013
A new trachylobane diterpene ent-trachyloban-18,19-diol (1) was isolated from root bark of Croton floribundus, along with known diterpenes ent-trachyloban-19-oic acid (2), 15b-hydroxy-ent-trachyloban-19-oic acid (3), ent-trachyloban-19-ol (4), ent-kaur ...
Paula Karina S. Uchôa   +8 more
doaj   +3 more sources

Three New Cytotoxic ent-Kaurane Diterpenes from Isodon excisoides [PDF]

open access: yesMolecules, 2015
Three types of ent-kaurane diterpenoids were isolated from the aerial parts of Isodon excisoides, including three new diterpenoids, 1α,7α,14β-trihydroxy-20-acetoxy-ent-kaur-15-one (1); 1α,7α,14β,18-tetrahydroxy-20-acetoxy-ent-kaur-15-one (2); and 1α ...
Li-Ping Dai   +6 more
doaj   +3 more sources

Antiproliferative Activity Of Flavonoids From Croton Sphaerogynus Baill. (euphorbiaceae). [PDF]

open access: yesBioMed Research International, Volume 2015, Issue 1, 2015., 2015
Croton sphaerogynus is a shrub from the Atlantic Rain Forest in southeastern Brazil. A lyophilized crude EtOH extract from leaves of C. sphaerogynus, obtained by maceration at room temperature (seven days), was suspended in methanol and partitioned with ...
de Carvalho, João E   +9 more
core   +10 more sources

Four New ent-Kaurane Diterpene Glycosides from Isodon henryi [PDF]

open access: yesMolecules, 2019
To obtain diterpene glycosides from an aqueous extract of the aerial parts of Isodon henryi and further investigate their cytotoxicities, in this study, a total of seven compounds were isolated, including six ent-kaurane diterpene glycosides (1−6 ...
Ya-Lin Liu   +6 more
doaj   +3 more sources

The Remarkable Structural Diversity Achieved in ent-Kaurane Diterpenes by Fungal Biotransformations [PDF]

open access: yesMolecules, 2014
The use of biotransformations in organic chemistry is widespread, with highlights of interesting applications in the functionalization of natural products containing unactivated carbons, like the kaurane diterpenes.
Jacqueline A. Takahashi   +4 more
doaj   +3 more sources

Mechanistic Pathways and Molecular Targets of Plant-Derived Anticancer ent-Kaurane Diterpenes [PDF]

open access: yesBiomolecules, 2020
Since the first discovery in 1961, more than 1300 ent-kaurane diterpenoids have been isolated and identified from different plant sources, mainly the genus Isodon. Chemically, they consist of a perhydrophenanthrene subunit and a cyclopentane ring.
Md. Shahid Sarwar   +4 more
doaj   +3 more sources

Kaurane diterpenes from the fruits of Zanthoxylum leprieurii (Rutaceae) [PDF]

open access: yes
: The fruits of Zanthoxylum leprieurii Guill. & Perr. (Rutaceae) are traditionally used in Africa, particularly in Cameroon, as a spice and in the treatment of sickle cell anaemia.
Evans, AR   +6 more
core   +1 more source

Neuroprotective Kaurane Diterpenes fromFritillaria ebeiensis [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 2011
The new kaurane diterpene, ent-3β-butanoyloxykaur-15-en-17-ol, and four known kaurane diterpenes were isolated from the bulbs of Fritillaria ebeiensis. Their structures were elucidated on the basis of extensive spectroscopic analyses (IR, ESI-MS, HR-ESI-MS, 1-D and 2-D NMR).
Jing, Xu   +7 more
openaire   +2 more sources

The correlation among residual nitrites, biogenic amines, N‐nitrosamine formation, and degradation occurrence of punicalagin α/β, rosmarinic acid, carnosol, and carnosic acid in extract‐treated sausage during storage

open access: yesFood Science &Nutrition, Volume 11, Issue 9, Page 5409-5426, September 2023., 2023
The use of natural antioxidants in meat products has been extensively studied. However, no reports have been found regarding the accumulation of antioxidant residues in meat products over the storage time in cold storage by LC‐DAD‐MS analysis. To manufacture of Punica granatum L.
Elahe Abedi   +4 more
wiley   +1 more source

Plant terpene specialized metabolism: complex networks or simple linear pathways?

open access: yesThe Plant Journal, Volume 114, Issue 5, Page 1178-1201, June 2023., 2023
SUMMARY From the perspectives of pathway evolution, discovery and engineering of plant specialized metabolism, the nature of the biosynthetic routes represents a critical aspect. Classical models depict biosynthesis typically from an end‐point angle and as linear, for example, connecting central and specialized metabolism. As the number of functionally
Emily R. Lanier   +2 more
wiley   +1 more source

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