National Natural Science Foundation of China(20272004 and 20572006);985 Program, Min-istry of Education of China.
Aim To discuss in depth the synthesis of hydroxyethylene dipeptide-based β-secretase inhibitors; Methods Organic reactions such as nucleophilic addition and substitution assisted by organometallic agents, catalytic h...
This work was supposed by the National Basic Research Program(973 Program)from the Ministry of Science and Technology of China(G1998051114);the National Natural Science Foundation of China(20272004)
Peptide nucleic acids (PNA) oligomers were synthesized in most cases by peptide synthesis from N-protected monomers. In this work a new method of obtaining PNA monomer by Ugi four-component condensation reaction was t...