Dendritic polypeptide-based nanocarriers for the delivery of therapeutic agents
申请人:Rutgers, The State University of New Jersey
公开号:US09943606B2
公开(公告)日:2018-04-17
Dendritic polypeptides useful for the delivery of therapeutic agents into cells are disclosed, together with their methods of preparation. These dendritic polypeptides serve as carriers of drugs, siRNA, aptamers and plasmid DNA in the treatment of various diseases, including cancer.
Rapid and Mild Synthesis of Amino Acid <i>N</i>
-Carboxy Anhydrides: Basic-to-Acidic Flash Switching in a Microflow Reactor
作者:Yuma Otake、Hiroyuki Nakamura、Shinichiro Fuse
DOI:10.1002/anie.201803549
日期:2018.8.27
Polymerization of N‐carboxyanhydrides (NCAs) is the primary process used to prepare polypeptides. The synthesis of various pure NCAs is key to the efficient synthesis of polypeptides. The only practical method that can be used to synthesize NCAs requires harsh acidic conditions that make acid‐labile substrates unusable and results in an undesired ring opening of NCAs. Basic‐to‐acidic flash switching
A micro-flow rapid dual activation approach for urethane-protected α-amino acid <i>N</i>-carboxyanhydride synthesis
作者:Ren Okabe、Naoto Sugisawa、Shinichiro Fuse
DOI:10.1039/d2ob00167e
日期:——
the rapid dual activation (10 s, 20 °C) of a combination of an α-aminoacidN-carboxyanhydride and alkyl chloroformate in the synthesis of a urethane-protected α-aminoacidN-carboxyanhydride in a micro-flow reactor. The key to success was the combined use of two amines that activated both substrates with proper timing. Three amines, i-Pr2NEt, Me2NBn, or N-ethylmorpholine, were used with pyridine in
Tertiary-Butylbenzene Functionalization as a Strategy for β-Sheet Polypeptides
作者:Rahul Nisal、Manickam Jayakannan
DOI:10.1021/acs.biomac.2c00416
日期:2022.6.13
due to their uncontrolled precipitation in the ring-opening polymerization (ROP) synthetic methodology. Here, a new t-butylbenzene functionalization approach is introduced to overcome this limitation by sterically controlling the propagating polymer chains, and homogeneous polymerization with good control over chain growth was accomplished. New bulky N-carboxyanhydride monomers were designed having t-butylbenzene
Rapid and column-chromatography-free peptide chain elongation <i>via</i> a one-flow, three-component coupling approach
作者:Naoto Sugisawa、Akira Ando、Shinichiro Fuse
DOI:10.1039/d3sc01333b
日期:——
Short peptides are extremely important as drugs and building blocks for the syntheses of longer peptides. Both solid- and liquid-phase peptide syntheses suffer from a large number of synthetic steps, high cost, and/or tedious purification. Here, we developed a rapid, mild, inexpensive, and column-chromatography-free peptide chain elongation via a one-flow, three-component coupling (3CC) approach that