745048-16-2Relevant academic research and scientific papers
CLEAVABLE LIPIDIC COMPOUNDS, COMPOSITIONS CONTAINING THEREOF, AND USES THEREOF
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, (2022/01/24)
The disclosure relates to novel lipidic compounds, method of manufacturing lipid nanoparticles (LNPs) containing thereof, lipid nanoparticles (LNPs) containing thereof, and the use of the LNPs for the delivery of nucleic acid. The lipidic compounds as disclosed herein is a cleavable lipidic compound comprising at least one terminal radical of formula (I): Y-(CHR)n-Z-(CHR')p-Q * (I) wherein: - * is the end linked, directly or not, to one C10 to C55 lipophilic or hydrophobic tail-group; - Y is a radical selected in the group consisting of methyl, methoxy, trifluoromethyl, imidazolyl, or is one hydrogen; - Z is a radical -NH-CH2-CO-O-** or a radical -CR''(NH2)-CO-O-** with ** that is the end closest to Q and R'' that is selected in the group consisting of hydrogen, methyl radical and trifluoromethyl radical; - Q is a radical -NH-CH2-CO-O-*** or a radical -CR''(NH2)-CO-O-*** with R'' selected in the group consisting of hydrogen, methyl radical and trifluoromethyl radical and *** that is the end linked, directly or not, to said lipophilic or hydrophobic tail-group; - R et R' are, independently one from the other, one hydrogen, one methyl radical or one trifluoromethyl radical; - n et p are independently one from the other 0, 1 or 2; or one of its pharmaceutically acceptable salts and with said compound being in all the possible racemic, enantiomeric and diastereoisomeric isomer forms.
Ligand-Phospholipid Conjugation: A Versatile Strategy for Developing Long-Acting Ligands That Bind to Membrane Proteins by Restricting the Subcellular Localization of the Ligand
Kawamura, Shuhei,Ito, Yoshihiko,Hirokawa, Takatsugu,Hikiyama, Eriko,Yamada, Shizuo,Shuto, Satoshi
, p. 4020 - 4029 (2018/05/07)
We hypothesized that if drug localization can be restricted to a particular subcellular domain where their target proteins reside, the drugs could bind to their target proteins without being metabolized and/or excreted, which would significantly extend the half-life of the corresponding drug-target complex. Thus, we designed ligand-phospholipid conjugates in which the ligand is conjugated with a phospholipid through a polyethylene glycol linker to restrict the subcellular localization of the ligand in the vicinity of the lipid bilayer. Here, we present the design, synthesis, pharmacological activity, and binding mode analysis of ligand-phospholipid conjugates with muscarinic acetylcholine receptors as the target proteins. These results demonstrate that ligand-phospholipid conjugation can be a versatile strategy for developing long-acting ligands that bind to membrane proteins in drug discovery.
OLIGOMER CONJUGATES OF LIDOCAINE AND ITS DERIVATIVES
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Page/Page column 41; 46, (2009/05/30)
The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer.
Fluorescent pirenzepine derivatives as potential bitopic ligands of the human M1 muscarinic receptor
Tahtaoui, Chouaib,Parrot, Isabelle,Klotz, Philippe,Guillier, Fabrice,Galzi, Jean-Luc,Hibert, Marcel,Ilien, Brigitte
, p. 4300 - 4315 (2007/10/03)
Following a recent description of fluorescence resonance energy transfer between enhanced green fluorescent protein (EGFP)-fused human muscarinic M1 receptors and Bodipy-labeled pirenzepine, we synthesized seven fluorescent derivatives of this antagonist in order to further characterize ligand-receptor interactions. These compounds carry Bodipy [558/568], Rhodamine Red-X [560/580], or Fluorolink Cy3 [550/570] fluorophores connected to pirenzepine through various linkers. All molecules reversibly bind with high affinity to M1 receptors (radioligand and energy transfer binding experiments) provided that the linker contains more than six atoms. The energy transfer efficiency exhibits modest variations among ligands, indicating that the distance separating EGFP from the fluorophores remains almost constant. This also supports the notion that the fluorophores may bind to the receptor protein. Kinetic analyses reveal that the dissociation of two Bodipy derivatives (10 or 12 atom long linkers) is sensitive to the presence of the allosteric modulator brucine, while that of all other molecules (15-24 atom long linkers) is not. The data favor the idea that these analogues might interact with both the acetylcholine and the brucine binding domains.
