scholarly journals Synthesis of novel functionalized cispentacins through C–C oxidative cleavage of diendo-norbornene β-amino acid

RSC Advances ◽  
2013 ◽  
Vol 3 (25) ◽  
pp. 9757 ◽  
Author(s):  
Maria Cherepanova ◽  
Loránd Kiss ◽  
Reijo Sillanpää ◽  
Ferenc Fülöp
Keyword(s):  
Amino Acid ◽  
Oxidative Cleavage

Amino acid-assisted ferrite/MOF composite formation for visible-light induced photocatalytic cascade C=C aerobic oxidative cleavage functionalization

2021 ◽  
Vol 516 ◽  
pp. 111949
Author(s):  
Fahad S. Al-Mubaddel ◽  
Meghdad Karimi ◽  
Samira Sadeghi ◽  
Reza Ghahremani Gavinehroudi ◽  
Haleh Mohebali ◽  
...  
Keyword(s):  
Amino Acid ◽  
Visible Light ◽  
Oxidative Cleavage ◽  
Composite Formation

scholarly journals Fusarochromene, a novel tryptophan-derived metabolite from Fusarium sacchari

2021 ◽  
Vol 19 (1) ◽  
pp. 182-187
Author(s):  
James W. Marshall ◽  
Kate M. J. de Mattos-Shipley ◽  
Iman A. Y. Ghannam ◽  
Asifa Munawar ◽  
Jonathan C. Killen ◽  
...  
Keyword(s):  
Amino Acid ◽  
Aromatic Amino Acid ◽  
Oxidative Cleavage ◽  
Fusarium Sacchari ◽  
Amino Acid Tryptophan

Fusarochromene and the fusarochromanone mycotoxins are derived via oxidative cleavage of the aromatic amino acid tryptophan.

Transition metal-free aerobic oxidative cleavage of the C–N bonds of α-amino esters

2019 ◽  
Vol 6 (23) ◽  
pp. 3854-3858
Author(s):  
Shenpeng Tan ◽  
Feng Li ◽  
Soojun Park ◽  
Sanghee Kim
Keyword(s):  
Amino Acid ◽  
Transition Metal ◽  
Metal Catalysts ◽  
Oxidative Cleavage ◽  
Amino Acid Derivatives ◽  
Metal Free ◽  
Amino Esters

A base-mediated aerobic oxidative cleavage of α-amino esters involving a hydroperoxide intermediate was reported, which represents the first example of the cleavage of the α-C–N bonds of amino acid derivatives without the aid of metal catalysts.

Mild Oxidative Cleavage of 9-BBN-Protected Amino Acid Derivatives

2015 ◽  
Vol 2015 (17) ◽  
pp. 3767-3770 ◽  
Author(s):  
Tobias Ankner ◽  
Thomas Norberg ◽  
Jan Kihlberg
Keyword(s):  
Amino Acid ◽  
Oxidative Cleavage ◽  
Amino Acid Derivatives ◽  
Protected Amino Acid

Synthesis of both enantiomers of lycoperdic acid, an unusual mushroom-derived amino acid

2021 ◽  
Vol 85 (1) ◽  
pp. 154-159
Author(s):  
Ryo Katsuta ◽  
Ryutaro Ishiuchi ◽  
Mikiko Kunisawa ◽  
Arata Yajima ◽  
Ken Ishigami ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dicarboxylic Acid ◽  
Acid Derivative ◽  
Edible Mushroom ◽  
Oxidative Cleavage ◽  
Efficient Synthesis ◽  
Vicinal Diol ◽  
Key Steps

Abstract An efficient synthesis of both enantiomers of lycoperdic acid, a 4-hydroxyglutamic acid derivative from edible mushroom Lycoperdon perlatum, was achieved from a chiral aminoalcohol. The key steps were a stereoselective introduction of a C3 unit into a bicyclic ketone and oxidative cleavage of a cyclic vicinal diol into a dicarboxylic acid. This report provides the first synthesis of (−)-lycoperdic acid.

ChemInform Abstract: Mild Oxidative Cleavage of 9-BBN-Protected Amino Acid Derivatives.

ChemInform ◽  
2015 ◽  
Vol 46 (44) ◽  
pp. no-no
Author(s):  
Tobias Ankner ◽  
Thomas Norberg ◽  
Jan Kihlberg
Keyword(s):  
Amino Acid ◽  
Oxidative Cleavage ◽  
Amino Acid Derivatives ◽  
Protected Amino Acid

scholarly journals A silicon-labelled amino acid suitable for late-stage fluorination and unexpected oxidative cleavage reactions in the preparation of a key intermediate in the Strecker synthesis

2018 ◽  
Vol 110 (3) ◽  
pp. e24069
Author(s):  
Kymberley R. Scroggie ◽  
Lisa J. Alcock ◽  
Maria J. Matos ◽  
Gonçalo J. L. Bernardes ◽  
Michael V. Perkins ◽  
...  
Keyword(s):  
Amino Acid ◽  
Late Stage ◽  
Oxidative Cleavage ◽  
Strecker Synthesis ◽  
Cleavage Reactions

The staining pattern of the tropomyosin sequence is displayed in a new paracrystal

1986 ◽  
Vol 44 ◽  
pp. 150-151
Author(s):  
M.K. Lamvik ◽  
L.L. Klatt
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Staining Pattern ◽  
Banding Patterns ◽  
Mass Thickness ◽  
New Form

Tropomyosin paracrystals have been used extensively as test specimens and magnification standards due to their clear periodic banding patterns. The paracrystal type discovered by Ohtsuki1 has been of particular interest as a test of unstained specimens because of alternating bands that differ by 50% in mass thickness. While producing specimens of this type, we came across a new paracrystal form. Since this new form displays aligned tropomyosin molecules without the overlaps that are characteristic of the Ohtsuki-type paracrystal, it presents a staining pattern that corresponds to the amino acid sequence of the molecule.

Electron probe x-ray microanalysis and electron microscopy of amino acid absorption and transport by the small intestine: inhibition by chemical poisons and correlation to the elemental composition of the epithelial cells

1986 ◽  
Vol 44 ◽  
pp. 134-135
Author(s):  
A. J. Tousimis
Keyword(s):  
Small Intestine ◽  
Amino Acid ◽  
Epithelial Cells ◽  
Elemental Composition ◽  
Isotope Labeling ◽  
Structural Components ◽  
X Ray ◽  
Human Small Intestine ◽  
Transport Studies

The elemental composition of amino acids is similar to that of the major structural components of the epithelial cells of the small intestine and other tissues. Therefore, their subcellular localization and concentration measurements are not possible by x-ray microanalysis. Radioactive isotope labeling: I131-tyrosine, Se75-methionine and S35-methionine have been successfully employed in numerous absorption and transport studies. The latter two have been utilized both in vitro and vivo, with similar results in the hamster and human small intestine. Non-radioactive Selenomethionine, since its absorption/transport behavior is assumed to be the same as that of Se75- methionine and S75-methionine could serve as a compound tracer for this amino acid.

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