Reduction and pH dual‐responsive block copolymers containing pendent
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‐nitrobenzyl carbamate functionalities: Synthesis and self‐assembly behavior
作者:Cong Hu、Bingyang Dong、Li Liu
DOI:10.1002/pola.29394
日期:2019.6.15
to liberate primary amine groups of the linkages, resulting in the disruption of the assemblies. The reduction sensitivity of assemblies was affected by the length of hydrophobic block and the structure of amino acid‐derived linkers. Using hydrophobic dye Nile red (NR) as a model drug, the polymeric assemblies were used as nanocarriers to evaluate the potential for drug delivery. The NR‐loaded nanoparticles
p-Nitrobenzyloxycarbonyl (pNZ) as a TemporaryNα-Protecting Group in Orthogonal Solid-Phase Peptide Synthesis - Avoiding Diketopiperazine and Aspartimide Formation
p-Nitrobenzyloxycarbonyl (pNZ) was used as a temporary protectinggroup for α-amino functionalities in solid-phase peptide synthesis. The corresponding derivatives are readily synthesized solids that perform well on solid phase. The pNZ moiety is orthogonal with the most common protectinggroups used in peptide chemistry, and is removed under neutral conditions in the presence of catalytic amounts
Formation of Supramolecular Nanostructures through in Situ Self‐Assembly and Post‐Assembly Modification of a Biocatalytically Constructed Dipeptide Hydrazide**
作者:Yuki Shintani、Taku Ohtomi、Aya Shibata、Yoshiaki Kitamura、Koichiro M. Hirosawa、Kenichi G. N. Suzuki、Masato Ikeda
DOI:10.1002/chem.202104421
日期:2022.2.7
The in-situ self-assembly of a biocatalytically constructed dipeptide hydrazide gives rise to supramolecular hydrogels consisting of networks of supramolecular nanoarchitectures under mild aqueous conditions. Moreover, post-assembly modification through hydrazone bond formation enables the decoration of the prefabricated supramolecular architectures. We believe that these findings could extend the
Peptidic prodrugs of novel aminomethyl-THF 1β-methylcarbapenems
作者:Yang-I Lin、Panayota Bitha、Subas M. Sakya、Zhong Li、Stanley A. Lang、Youjun Yang、Niraja Bhachech、William J. Weiss、Peter J. Petersen、Nilda V. Jacobus、Karen Bush、Raymond T. Testa
DOI:10.1016/s0960-894x(97)00281-3
日期:1997.7
Peptidic prodrugs of the five most active aminomethyl-THF 1 beta-methylcarbapenems were synthesized. Of these, only L-amino acid derivatives from la demonstrated an improved oral activity. These results indicate that the L-amino acid derivatives from la are orally absorbed most likely through the dipeptide and tripeptide transport mechanism. (C) 1997 Elsevier Science Ltd.