Hickey, Jennifer L. published the artcilePassive Membrane Permeability of Macrocycles Can Be Controlled by Exocyclic Amide Bonds, Product Details of C25H23NO4, the publication is Journal of Medicinal Chemistry (2016), 59(11), 5368-5376, database is CAplus and MEDLINE.
We have developed a strategy for synthesizing passively permeable peptidomimetic macrocycles. The cyclization chem. centers on using aziridine aldehydes in a multicomponent reaction with peptides and isocyanides. The linker region in the resulting product contains an exocyclic amide positioned α to the peptide backbone, an arrangement that is not found among natural amino acids. This amide provides structural rigidity within the cyclic peptidomimetic and promotes the creation of a stabilizing intramol. hydrogen bonding network. This exocyclic control element also contributes to the increased membrane permeability exhibited by multicomponent-derived macrocycles with respect to their homodetic counterparts. The exocyclic control element is employed along with a strategic placement of N-Me and
Journal of Medicinal Chemistry published new progress about 77128-73-5. 77128-73-5 belongs to ethers-buliding-blocks, auxiliary class Inhibitor, name is (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-phenylpropanoic acid, and the molecular formula is C25H23NO4, Product Details of C25H23NO4.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem