The Building Block Approach to Unusual α-Amino Acid Derivatives and Peptides

2003 ◽  
Vol 36 (5) ◽  
pp. 342-351 ◽  
Author(s):  
Sambasivarao Kotha
Keyword(s):  
Amino Acid ◽  
Building Block ◽  
Amino Acid Derivatives ◽  
Block Approach

UV-Light-Induced Dehydrogenative N-Acylation of Amines with 2-Nitrobenzaldehydes to Give 2-Aminobenzamides

Synthesis ◽  
2022 ◽  
Author(s):  
Dishu Zeng ◽  
Tianbao Yang ◽  
Niu Tang ◽  
Wei Deng ◽  
Jiannan Xiang ◽  
...  
Keyword(s):  
Amino Acid ◽  
Organic Synthesis ◽  
Efficient Method ◽  
Building Block ◽  
Room Temperature ◽  
Uv Light ◽  
Amino Acid Derivatives ◽  
One Pot ◽  
Plausible Mechanism ◽  
High Yields

A simple, mild, green and efficient method for the synthesis of 2-aminobenzamides was highly desired in organic synthesis. Herein, we developed an efficient, one-pot strategy for the synthesis of 2-aminobenzamides with high yields irradiated by UV light. 32 examples proceeded successfully by this photo-induced protocol. The yield reached up to 92%. The gram scale was also achieved easily. This building block could be applied in the preparation of quinazolinones derivatives. Amino acid derivatives could be employed smoothly at room temperature. Finally, a plausible mechanism was proposed.

scholarly journals A mechanochemical approach to access the proline–proline diketopiperazine framework

2017 ◽  
Vol 13 ◽  
pp. 2169-2178 ◽  
Author(s):  
Nicolas Pétry ◽  
Hafid Benakki ◽  
Eric Clot ◽  
Pascal Retailleau ◽  
Farhate Guenoun ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dft Calculations ◽  
Nucleophilic Substitution ◽  
Ball Milling ◽  
Building Block ◽  
Ball Mill ◽  
Amino Acid Derivatives ◽  
Solvent Free Conditions ◽  
Proline Amino Acid ◽  
High Stereoselectivity

Ball milling was exploited to prepare a substituted proline building block by mechanochemical nucleophilic substitution. Subsequently, the mechanocoupling of hindered proline amino acid derivatives was developed to provide proline–proline dipeptides under solvent-free conditions. A deprotection–cyclization sequence yielded the corresponding diketopiperazines that were obtained with a high stereoselectivity which could be explained by DFT calculations. Using this method, an enantiopure disubstituted Pro–Pro diketopiperazine was synthesized in 4 steps, making 5 new bonds using a ball mill.

Three Amino Acid Derivatives of Valproic Acid: Design, Synthesis, Theoretical and Experimental Evaluation as Anticancer Agents

2014 ◽  
Vol 14 (7) ◽  
pp. 984-993 ◽  
Author(s):  
Gabriela Luna-Palencia ◽  
Federico Martinez-Ramos ◽  
Ismael Vasquez-Moctezuma ◽  
Manuel Fragoso-Vazquez ◽  
Jessica Mendieta-Wejebe ◽  
...  
Keyword(s):  
Valproic Acid ◽  
Amino Acid ◽  
Anticancer Agents ◽  
Experimental Evaluation ◽  
Amino Acid Derivatives ◽  
Design Synthesis ◽  
Derivatives Of

scholarly journals In vitro anticancer potentiality and molecular modelling study of novel amino acid derivatives based on N1,N3-bis-(1-hydrazinyl-1-oxopropan-2-yl) isophthalamide

2019 ◽  
Vol 34 (1) ◽  
pp. 1247-1258 ◽  
Author(s):  
Asmaa F. Kassem ◽  
Gaber O. Moustafa ◽  
Eman S. Nossier ◽  
Hemat S. Khalaf ◽  
Marwa M. Mounier ◽  
...  
Keyword(s):  
Amino Acid ◽  
Molecular Modelling ◽  
Amino Acid Derivatives ◽  
Modelling Study
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