A Synthetic Approach to the Marine Sponge Alkaloids Agelasimine A and Agelasimine B

Heterocycles ◽  
1993 ◽  
Vol 35 (1) ◽  
pp. 143 ◽  
Author(s):  
Tozo Fujii ◽  
Tohru Saito ◽  
Jun Chikazawa ◽  
Yuko Nakamura
Keyword(s):  
Marine Sponge ◽  
Synthetic Approach

scholarly journals A Biomimetic Synthetic Approach to the Frondosins

2016 ◽  
Vol 69 (12) ◽  
pp. 1420 ◽  
Author(s):  
Kevin K. W. Kuan ◽  
Aylin M. C. Hirschvogel ◽  
Jonathan H. George
Keyword(s):  
Marine Sponge ◽  
Ring Expansion ◽  
Cascade Reaction ◽  
Ring System ◽  
Biomimetic Synthesis ◽  
Synthetic Approach ◽  
Compelling Evidence

The frondosins are a family of five marine sponge-derived meroterpenoids. We propose that the 6–7 ring system common to each of the frondosins is biosynthesized via ring expansion of a 6–6 ring system. Compelling evidence in favour of this proposal was obtained in the form of a biomimetic synthesis of the frondosin 6–7 ring system, which features a highly stereo- and regio-selective ring expansion cascade reaction as the key step.

Scopularides A and B, two new cyclodepsipeptides from the marine sponge-derived fungus Scopulariopsis brevicaulis

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
I Kajahn ◽  
Z Yu ◽  
G Lang ◽  
R Schmaljohann ◽  
JF Imhoff
Keyword(s):  
Marine Sponge ◽  
Scopulariopsis Brevicaulis

New cystine knot peptides from a marine sponge Asteropus sp.

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
J Jung ◽  
H Li ◽  
J Li ◽  
C Lee ◽  
W Lee ◽  
...  
Keyword(s):  
Marine Sponge ◽  
Cystine Knot

Pentacyclic ingamine-type alkaloids, a new antiplasmodial pharmacophore from the marine sponge Petrosid Ng5 Sp5

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
I Muhammad ◽  
MA Ibrahim ◽  
S Khan ◽  
M Jacob ◽  
BL Tekwani ◽  
...  
Keyword(s):  
Marine Sponge

Cytotoxic Batzelladine L from the Brazilian Marine Sponge Monanchora arbuscula

Planta Medica ◽  
2013 ◽  
Vol 79 (10) ◽  
Author(s):  
C Pessoa ◽  
MFC dos Santos ◽  
RGS Berlinck ◽  
PMP Ferreira ◽  
BC Cavalcanti
Keyword(s):  
Marine Sponge

Three new cytotoxic polyacetylenes from a marine sponge Halichondria sp.

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
G Adeyemi Francis ◽  
C Tanaka ◽  
Z Li ◽  
T Miyamoto
Keyword(s):  
Marine Sponge

Brominated cyclodipeptides from the marine sponge Geodia barretti as selective 5-HT ligands

Planta Medica ◽  
2006 ◽  
Vol 72 (11) ◽  
Author(s):  
E Hedner ◽  
M Sjögren ◽  
PA Frändberg ◽  
T Johansson ◽  
U Göransson ◽  
...  
Keyword(s):  
Marine Sponge

New Insights into the Nature of the Band Gap of CuGeO3 Nanoparticles: Synthesis, Electronic Structure, and Optical and Photocatalytic Properties

2019 ◽  
Author(s):  
Victor Y. Suzuki ◽  
Luís Henrique Cardozo Amorin ◽  
Natália H. de Paula ◽  
Anderson R. Albuquerque ◽  
Julio Ricardo Sambrano ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Band Gap ◽  
Material Design ◽  
Photocatalytic Properties ◽  
Critical Parameters ◽  
Synthetic Approach ◽  
Microwave Assisted ◽  
Theoretical Approaches ◽  
Nanoparticles Synthesis ◽  
First Time

<p>We report, for the first time, new insights into the nature of the band gap of <a>CuGeO<sub>3</sub> </a>(CGO) nanocrystals synthesized from a microwave-assisted hydrothermal method in the presence of citrate. To the best of our knowledge, this synthetic approach has the shortest reaction time and it works at the lowest temperatures reported in the literature for the preparation of these materials. The influence of the surfactant on the structural, electronic, optical, and photocatalytic properties of CGO nanocrystals is discussed by a combination of experimental and theoretical approaches, and that results elucidates the nature of the band gap of synthetized CGO nanocrystals. We believe that this particular strategy is one of the most critical parameters for the development of innovative applications and that result could shed some light on the emerging material design with entirely new properties.</p> <p><b> </b></p>

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