2018
DOI: 10.1002/macp.201800303
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Synthetic Approach of Thermally Tunable Nature‐Mimetic Polypeptides from N‐Protected Alternating Peptoids

Abstract: A facile approach to synthesize nature‐mimetic polypeptides via the formation of N‐protected intermediates is developed. The approach is based on the use of stable and easily cleavable N‐(1‐p‐methoxyphenethyl) (MPE) group as a new N‐protecting group for an amide group. The MPE‐protected polypeptides are prepared in one‐pot via three‐component polycondensation using amino acid–free starting materials. Subsequent acidic treatment of the obtained polypeptides result in the perfect removal of MPE to give the natur… Show more

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Cited by 11 publications
(7 citation statements)
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“…At this moment, we noticed that the tendency observed in Figure 2c was not dependent only on the difference of secondary structures of the alternating peptides. Aside from the cloud point, the transmittance of Pr-Pep slightly decreased at the higher temperatures compared with that at around 20 °C, implying that the thermal aggregates of hydrophobic side chains would afford an additional cloud point upon heating [23]. The cloud point of Me-Pep appeared at a slightly higher temperature than that of Et-Pep (Figure 5f).…”
Section: Resultsmentioning
confidence: 99%
“…At this moment, we noticed that the tendency observed in Figure 2c was not dependent only on the difference of secondary structures of the alternating peptides. Aside from the cloud point, the transmittance of Pr-Pep slightly decreased at the higher temperatures compared with that at around 20 °C, implying that the thermal aggregates of hydrophobic side chains would afford an additional cloud point upon heating [23]. The cloud point of Me-Pep appeared at a slightly higher temperature than that of Et-Pep (Figure 5f).…”
Section: Resultsmentioning
confidence: 99%
“…The mixture was stirred for 6 days at room temperature, quenched with water, and purified to obtain the MPE-substituted poly(Orn-alter-Gly). [25][26][27][28] MPE-substituted poly(Orn-alter-Gly) (0.3 g) was dissolved in methanesulfonic acid (5 g, 3.4 ml) and stirred at 100 C for 16 h. The product was purified to obtain the poly(Orn-alter-Gly). [25][26][27][28]…”
Section: Synthesis Of Poly(orn-alter-gly)mentioning
confidence: 99%
“…[25][26][27][28] MPE-substituted poly(Orn-alter-Gly) (0.3 g) was dissolved in methanesulfonic acid (5 g, 3.4 ml) and stirred at 100 C for 16 h. The product was purified to obtain the poly(Orn-alter-Gly). [25][26][27][28]…”
Section: Synthesis Of Poly(orn-alter-gly)mentioning
confidence: 99%
“…The amino acid alternating copolymer is a kind of alternated polymer composed of two different amino acids . They have regular sequences and consistent degradation fragments, and their properties can be regulated by macromolecular chain sequences and side groups, which have prospects for application in the biomedical field. To exemplify, Charles J. Bowerman et al constructed a variety of alternate amino acid copolymers that could be used for self-assembly and hydrogel preparation, such as Ac-(XKXK) 2 -NH 2 peptides, where X = valine (Val), isoleucine (Ile), phenylalanine (Phe), pentafluorophenylalanine (F5-Phe), and cyclohexylalanine (Cha) . In our previous work, we prepared alkaline alternating amino acid copolymers and further modified the surface of biomaterials to obtain higher biocompatible and antibacterial properties. , Solid-phase peptide synthesis (SPPS) technology allows efficient and precise preparation of target peptides, which is beneficial to accurately control the side chain groups and molecular weight. …”
Section: Introductionmentioning
confidence: 99%