Structural and mechanistic insights into the inhibition of amyloid-β aggregation by Aβ39-42 fragment derived synthetic peptides
作者:Akshay Kapadia、Krishna K. Sharma、Indresh Kumar Maurya、Varinder Singh、Madhu Khullar、Rahul Jain
DOI:10.1016/j.ejmech.2020.113126
日期:2021.2
permeability and offered proteolytic stability to the syntheticpeptides. Several peptides exhibited promising protection against Aβ aggregation-mediated-neurotoxicity in PC-12 cells at doses ranged between 10 μM and 0.1 μM, further confirmed by the thioflavin-T fluorescence assay. CD study illustrate that these peptides restrict the β-sheet formation, and the non-appearance of Aβ42 fibrillar structures in
Biphenyl and biphenyl-analogous compounds as integrin antagonists
申请人:——
公开号:US20020016461A1
公开(公告)日:2002-02-07
The present invention relates to biphenyl and biphenyl-analogous compounds, their preparation and use as pharmaceutical compositions, as integrin antagonists and in particular for the production of pharmaceutical compositions for the treatment and prophylaxis of cancer, arteriosclerosis, restenosis, osteolytic disorders such as osteoporosis and ophthalmic diseases. The compounds according to the invention have the formula (
1
)
1
wherein
R
1
, R
2
, U, V, A, B, W, R
3
, C and R
4
have the meaning as defined in the claims.
Utilization of a β-Aminophosphotyrosyl Mimetic in the Design and Synthesis of Macrocyclic Grb2 SH2 Domain-Binding Peptides
作者:Kyeong Lee、Manchao Zhang、Hongpeng Liu、Dajun Yang、Terrence R. Burke
DOI:10.1021/jm030049q
日期:2003.6.1
processes. Development of synthetic Grb2 SH2 domain binding ligands is being pursued by several groups as potential new therapies for a variety of diseases, including certain cancers. In these efforts, macrocyclization has been successfully utilized to take advantage of preferential recognition by Grb2 SH2 domains of ligands in beta-bend conformations. Recent examples of this approach include olefin-metathesis-derived
Cyclodepsipeptide alveolaride C: total synthesis and structural assignment
作者:Sanu Saha、Debobrata Paul、Rajib Kumar Goswami
DOI:10.1039/d0sc04478d
日期:——
First stereoselective totalsynthesis of naturally occurring bioactive cyclodepsipeptide alveolaride C has been achieved using a convergent approach. This synthetic study enabled us to establish unambiguously the stereochemistry of three unassigned chiral centres embedded in the nonpeptidic segment as well as revised the stereochemistry of the proposed β-phenylalanine counterpart of the molecule. The
Solid phase synthesis of novelα/β-tetrapeptides, electrospray ionization mass spectrometric evaluation of their metal cation complexation behavior, and conformational analysis using density functional theory (DFT)
作者:Yamir Bandala、Judit Aviña、Tania González、Ignacio A. Rivero、Eusebio Juaristi
DOI:10.1002/poc.1328
日期:2008.5
1–34 were prepared by a combination of three α-amino acid residues (alanine (Ala), phenylalanine (Phe), and isoleucine (Ile)) with one β-amino acid residue (β3-homophenylglycine). The corresponding complexes of several selected α/β-tetrapeptides with alkali, alkaline earth, and transition metals, [tP + M+], were evaluated using ion electrospray-ionization mass spectrometry (ESI-MS). According to the results