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Gou F, Shi D, Kou B, Li Z, Yan X, Wu X, Jiang YB. One-Pot Cyclization to Large Peptidomimetic Macrocycles by In Situ-Generated β-Turn-Enforced Folding. J Am Chem Soc 2023; 145:9530-9539. [PMID: 37037798 DOI: 10.1021/jacs.2c11684] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Macrocycles have been targets of extensive synthetic efforts for decades because of their potent molecular recognition and self-assembly capabilities. Yet, efficient syntheses of macrocyclic molecules via irreversible covalent bonds remain challenging. Here, we report an efficient approach to large peptidomimetic macrocycles by using the in situ-generated β-turn structural motifs afforded in the amidothiourea moieties from the early steps of the reaction of 2 molecules of bilateral amino acid-based acylhydrazine with 2 molecules of diisothiocyanate. Four chiral and achiral peptidomimetic large macrocycles were successfully synthesized in high yields of 45-63% in a feasible one-pot reaction under sub-molar concentration conditions and were purified by simple filtration. X-ray crystallographic characterization of three macrocycles reveals an important feature that their four β-turn structures, each maintained by four 10-membered intramolecular hydrogen bonds, alternatively network the four aromatic arms. This affords an interesting conformation switching mode upon anion binding. Binding of SO42- to 1L or 1D that contains 4 alanine residues (with the lowest steric hinderance among the macrocycles) leads to an inside-out structural change of the host macrocycle, as confirmed by the X-ray crystal structure of 1L-SO42- and 1D-SO42- complexes, accompanied by an inversion of the CD signals. On the basis of the strong sulfate affinity of the macrocycles, we succeeded in the removal of sulfate anions from water via a macrocycle-mediated liquid-liquid extraction method. Our synthetic protocol can be easily extended to other macrocycles of varying arms and/or chiral amino acid residues; thus, a variety of structurally and functionally diverse macrocycles are expected to be readily made.
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Affiliation(s)
- Fei Gou
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Di Shi
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Bohan Kou
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
- School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Xin Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
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2
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New Low-Dimensional Hybrid Perovskitoids Based on Lead Bromide with Organic Cations from Charge-Transfer Complexes. CRYSTALS 2021. [DOI: 10.3390/cryst11111424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have obtained a series of low-dimensional hybrid perovskitoids (often referred to as perovskites) based on lead bromide. As organic cations, the derivatives of polyaromatic and conjugated molecules, such as anthracene, pyrene and (E)-stilbene, were chosen to form charge-transfer complexes with various organic acceptors for use as highly tunable components of hybrid perovskite solar cells. X-ray diffraction analysis showed these crystalline materials to be new 1D- and pseudo-layered 0D-perovskitoids with lead bromide octahedra featuring different sharing modes, such as in unusual mini-rods of four face- and edge-shared octahedra. Thanks to the low dimensionality, they can be of use in another type of optoelectronic device, photodetectors.
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Baruah K, Sahariah B, Sakpal SS, Deka JKR, Bar AK, Bagchi S, Sarma BK. Stabilization of Azapeptides by N amide···H-N amide Hydrogen Bonds. Org Lett 2021; 23:4949-4954. [PMID: 34060858 DOI: 10.1021/acs.orglett.1c01111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An unusual Namide···H-Namide hydrogen bond (HB) was previously proposed to stabilize the azapeptide β-turns. Herein we provide experimental evidence for the Namide···H-Namide HB and show that this HB endows a stabilization of 1-3 kcal·mol-1 and enforces the trans-cis-trans (t-c-t) and cis-cis-trans (c-c-t) amide bond conformations in azapeptides and N-methyl-azapeptides, respectively. Our results indicate that these Namide···H-Namide HBs can have stabilizing contributions even in short azapeptides that cannot fold to form β-turns.
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Affiliation(s)
- Kalpita Baruah
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Biswajit Sahariah
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, Karnataka 560064, India
| | - Sushil S Sakpal
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Jugal Kishore Rai Deka
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Arun Kumar Bar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 501507, India
| | - Sayan Bagchi
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Bani Kanta Sarma
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, Karnataka 560064, India
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4
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Yan X, Cao J, Zhang Y, Weng P, Miao D, Zhao Z, Li Z, Jiang YB. Solvophobic interaction promoted supramolecular helical assembly of building blocks of weak intermolecular halogen bonding. Chem Commun (Camb) 2021; 57:1802-1805. [DOI: 10.1039/d0cc08041a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Bromination of β-turn structured bis(N-amidothiourea) facilitates the formation of supramolecular helical polymers in water through halogen bonding and hydrophobic interaction, exhibiting an unusual negative nonlinear CD-ee dependence.
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Affiliation(s)
- Xiaosheng Yan
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Jinlian Cao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Yanhan Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Peimin Weng
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Daiyu Miao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Zhixing Zhao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Zhao Li
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
| | - Yun-Bao Jiang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM
- Xiamen University
- Xiamen 361005
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5
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Zhang Y, Yan X, Cao J, Weng P, Miao D, Li Z, Jiang YB. Turn Conformation of β-Amino Acid-Based Short Peptides Promoted by an Amidothiourea Moiety at C-Terminus. J Org Chem 2020; 85:9844-9849. [PMID: 32584574 DOI: 10.1021/acs.joc.0c01139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A C-terminal amidothiourea motif is shown to promote a β-turn-like folded conformation in a series of β-amino acid-based short peptides in both the solid state and solution phase by an intramolecular 11-membered ring hydrogen bond.
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Affiliation(s)
- Yanhan Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Jinlian Cao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Peimin Weng
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Daiyu Miao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
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6
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Yuan Y, Xiao YW, Yan XS, Wu SX, Luo H, Lin JB, Li Z, Jiang YB. Supramolecular chirality of coordination polymers of Ag+ with a chiral thiol ligand that bears a β-turn structure. Chem Commun (Camb) 2019; 55:12849-12852. [DOI: 10.1039/c9cc07590a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination polymers of Ag+ with a β-turn containing chiral thiol ligand exhibit supramolecular chirality showing simultaneously the majority rules effect (MRE) and racemate rules effect (RRE).
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Affiliation(s)
- Yuan Yuan
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Yu-Wei Xiao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Xiao-Sheng Yan
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Si-Xian Wu
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Huan Luo
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Jian-Bin Lin
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Zhao Li
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
| | - Yun-Bao Jiang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM
- Xiamen University
- Xiamen 361005
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Yan XS, Luo H, Zou KS, Cao JL, Li Z, Jiang YB. Short Azapeptides of Folded Structures in Aqueous Solutions. ACS OMEGA 2018; 3:4786-4790. [PMID: 31458696 PMCID: PMC6641869 DOI: 10.1021/acsomega.8b00041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/06/2018] [Indexed: 06/10/2023]
Abstract
Building folded short peptides that are driven by the intramolecular hydrogen bonding in aqueous solutions remains challenging because of their highly competitive intermolecular hydrogen-bonding interactions with water solvent molecules that would have favored the extended conformations. Here, we show folded β-turn structures in acyl amino acid-based N-amidothioureas, the nonclassic azapeptides, in aqueous solutions, as well as in solid-state and organic solvents, by X-ray crystal structures, DFT calculations, 1D and 2D NMR spectra, and absorption and CD spectra. The achiral phenylthiourea chromophore acts as a CD reporter for the β-turn structure that communicates the chirality of the amino acid residue to the achiral thiourea moiety and the relative intensity of the intramolecular hydrogen bond that stabilizes the turn structure. The amidothiourea moiety represents a versatile structural framework for folded short peptides in aqueous environments.
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