Results 61 to 70 of about 545 (181)

The structure of lividic acid. A depsidone from the lichen Parmelia formosana

open access: yes, 1976
The depsidone, lividic acid [1'-carboxy-2',3-dihydroxy-4.methoxy-6-(2"-oxoheptyl)-6-pentyldepsidone](1) has been isolated from the lichen Parmelia formosana Zahlbr.
JA Elix, U Engkaninan
core   +1 more source

Botryorhodine J, a new anti-MRSA depsidone isolated from endophytic fungus Alternaria alternata Pas11

open access: yes, 2023
A new depsidone derivative botryorhodine J (1), along with six known compounds (2–7) were obtained from solid rice cultures of Alternaria alternata Pas11 that was isolated from leaves of Phragmites australis.
Rui Wu (237891)   +7 more
core   +1 more source

Excelsione, a depsidone from an endophytic fungus isolated from the New Zealand endemic tree, Knightia excelsa

open access: yes, 2007
A new tetracyclic depsidone, excelsione (1), was isolated from the extract of an unidentified fungal endophyte obtained from the New Zealand endemic tree Knightia excelsa.
Lang, Gerhard   +4 more
core   +1 more source

Genome Mining and Biosynthetic Reconstitution of Fungal Depsidone Mollicellins Reveal a Dual Functional Cytochrome P450 for Ether Formation

open access: yes, 2023
Depsidones are significant in structural diversity and broad in biological activities; however, their biosynthetic pathways have not been well understood and have attracted considerable attention.
Youzhe Chen   +17 more
core   +1 more source

A NEW LICHEN DEPSIDONE FROM L OBARIA PULMONARIA

open access: yes, 2020
The continuation of our phytochemical survey of Lobaria pulmonaria (L.) Hoffm. (Lobariaceae), has led to the isolation and identification of a new lichen depsidone (1) characterised by the normal analytical and spectroscopic techniques. Unlike previously
Giuseppina Tommonaro   +5 more
core  

The structure of connorstictic acid. A depsidone from the lichen Lecidea aspidula

open access: yes, 1981
Connorstictic acid (2) was isolated from the lichen Lecidea aspidula as the corresponding tetraacetate(3). The structure of the latter compound was confirmed by synthesis in several steps from the known depsidone, norstictic acid (4). Direct reduction of
L Lajide, JA Elix
core   +1 more source

Synthesis and Antimicrobial Activity of Protocetraric Acid Derivatives

open access: yesOrbital: The Electronic Journal of Chemistry
Antimicrobial resistance has become a serious threat worldwide. To overcome this huge public health problem, the continuous search for new active compounds is urgently needed, and structural modifications and the synthesis of natural products ...
Tatiana Matayoshi   +4 more
doaj   +1 more source

Depsidone synthesis. XXII. An alternative synthesis of gangaleoidin

open access: yes, 1981
A new synthesis of the lichen depsidone gangaleoidin (1) (methyl 2,4-dichloro-3-hydroxy-8-methoxy-1,6-dimethyl-11-oxo-11H-dibenzo[b,e][l,4]dioxepin-7-carboxylate) is described.
LJ Cullen, MV Sargent
core   +1 more source

Chemical investigation of Indian lichens-XXIV: the chemical components of Alectoria virens Tayl. constitution of a new depsidone, virensic acid

open access: yes, 1961
The Himalayan lichen Alectoria virens Tayl. is found to contain besides D-arabitol, the unusual association of vulpinic acid and a new depsidone, virensic acid, whose structure is established as ...
Sarma, K. G.   +5 more
core   +1 more source

The structure of galbinic acid. A depsidone from the lichen Usnea undulata

open access: yes, 1975
The depsidone, galbinic acid (α-acetylsalazinic acid) (4), has been isolated from the lichen Usnea undulata together with usnic, norstictic and salazinic acids.
JA Elix, U Engkaninan
core   +1 more source

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