Gold(iii) assisted C–H activation of 1,4,7-trithiacyclononane: synthesis and spontaneous resolution of a bicyclic chiral sulfonium salt

2014 ◽  
Vol 43 (9) ◽  
pp. 3424-3427
Author(s):  
D. E. Janzen ◽  
A. M. Kooyman
Keyword(s):  
Thermal Reaction ◽  
Spontaneous Resolution ◽  
Sulfonium Salt ◽  
Ligand Complex

A trithiamacrocyclic ligand complex of Au(iii) undergoes a redox-mediated thermal reaction to form a chiral bicyclic sulfonium salt.

Synthesis, Structures, and Properties of Four Novel HgII Complexes Based on Pyridine Acylamide Ligands

2015 ◽  
Vol 68 (1) ◽  
pp. 80
Author(s):  
Xiao-Min Zhang ◽  
Xue-Feng Feng ◽  
Jian-Qiang Li ◽  
Feng Luo
Keyword(s):  
Thermal Reaction ◽  
Spontaneous Resolution ◽  
Luminescence Properties ◽  
Dimensional Structure ◽  
Helical Chain ◽  
Coordination Geometry ◽  
Chiral Structure ◽  
One Dimensional ◽  
Careful Inspection ◽  
Structures And Properties

In this work we synthesised four new pyridine acylamide complexes [HgI2(L1)] (1) and (2), [HgI2(L2)2] (3), and [HgI2(L3)]n (4) (L1 = N,N′-bis(3-pyridylmethyl)benzene-1,4-dicarboxamide, L2 = N4,N4′-bis(pyridin-3-yl)-[1,1′-biphenyl]-4,4′-dicarboxamide, L3 = N1,N3-bis(pyridin-3-ylmethyl)isophthalamide) by solvo(hydro)thermal reaction. Compounds 1 and 2 are supramolecular isomers prepared via variation of the reaction solvent, in which the HgII centres are bridged by L1 ligands to form one-dimensional (1D) helical chain or 1D meso-helical chain, respectively. Careful inspection of the structures reveal that formation of the isomers are mainly induced by the distinct configuration of L1 ligand and slight differences in coordination geometry of the HgII ions. Complex 3 shows a novel Z-shaped zero-dimensional structure with a L2–HgI2–L2–HgI2–L2 arrangement. In complex 4, flexible L3 ligands link HgI2 units to construct a 1D helical chain with an overall chiral structure, derived from spontaneous resolution. Luminescence properties of these four novel complexes were also explored.

A Case of Spontaneous Resolution of Castleman's Disease in the Neck

2012 ◽  
Vol 55 (11) ◽  
pp. 736
Author(s):  
Seong-Hyun Yun ◽  
Soo-Ryang Chae ◽  
Dong-Joon Yoo ◽  
Young-Hoon Joo
Keyword(s):  
Castleman’S Disease ◽  
Spontaneous Resolution ◽  
Castleman's Disease

Spontaneous resolution of hypothalamic amenorrhea post diagnostic GnRH test

2015 ◽  
Author(s):  
G K Dimitriadis ◽  
M O Weickert ◽  
T M Barber ◽  
H S Randeva
Keyword(s):  
Spontaneous Resolution ◽  
Hypothalamic Amenorrhea

Homology Modeling of Mus Musculus CDK5 and Molecular Docking Studies with Flavonoids

2017 ◽  
Vol 9 (6) ◽  
Author(s):  
Sowmya Suri ◽  
Rumana Waseem ◽  
Seshagiri Bandi ◽  
Sania Shaik
Keyword(s):  
Molecular Docking ◽  
3D Model ◽  
Structural Features ◽  
Docking Studies ◽  
Amino Acid Residues ◽  
Cyclin Dependent Kinase ◽  
Ligand Complex ◽  
Ligand Interaction ◽  
Molecular Docking Studies ◽  
Cyclin Dependent Kinase 5

A 3D model of Cyclin-dependent kinase 5 (CDK5) (Accession Number: Q543f6) is generated based on crystal structure of P. falciparum PFPK5-indirubin-5-sulphonate ligand complex (PDB ID: 1V0O) at 2.30 Å resolution was used as template. Protein-ligand interaction studies were performed with flavonoids to explore structural features and binding mechanism of flavonoids as CDK5 (Cyclin-dependent kinase 5) inhibitors. The modelled structure was selected on the basis of least modeler objective function. The model was validated by PROCHECK. The predicted 3D model is reliable with 93.0% of amino acid residues in core region of the Ramachandran plot. Molecular docking studies with flavonoids viz., Diosmetin, Eriodictyol, Fortuneletin, Apigenin, Ayanin, Baicalein, Chrysoeriol and Chrysosplenol-D with modelled protein indicate that Diosmetin is the best inhibitor containing docking score of -8.23 kcal/mol. Cys83, Lys89, Asp84. The compound Diosmetin shows interactions with Cys83, Lys89, and Asp84.

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