Nature chemistry最新文献

Cyclic amine ring expansion 环胺扩环

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-21 DOI: 10.1038/s41557-024-01674-y

Jack M. Wootton, William P. Unsworth

引用次数: 0

Diversified ring expansion of saturated cyclic amines enabled by azlactone insertion 通过氮内酯插入实现饱和环胺的多样化扩环

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-21 DOI: 10.1038/s41557-024-01668-w

Licheng Wu, Hanyu Xia, Jiahao Bai, Yang Xi, Xianqing Wu, Li Gao, Jingping Qu, Yifeng Chen

{"title":"Diversified ring expansion of saturated cyclic amines enabled by azlactone insertion","authors":"Licheng Wu, Hanyu Xia, Jiahao Bai, Yang Xi, Xianqing Wu, Li Gao, Jingping Qu, Yifeng Chen","doi":"10.1038/s41557-024-01668-w","DOIUrl":"https://doi.org/10.1038/s41557-024-01668-w","url":null,"abstract":"Saturated N-heterocycles are ubiquitous structures among natural products and biologically active compounds. Therefore, the development of synthetic methods for the construction of N-heterocycles is of great importance in the synthetic community. Altering the ring system of these motifs to analogues with different ring sizes by employing molecular editing techniques would be highly appealing in medicinal chemistry. We present herein the direct insertion of glycine derivatives as two-carbon synthons into unstrained five- or six-membered saturated cyclic amines at predictable sites, enabling the construction of synthetically challenging medium-sized azacycles through sequential Ru-catalysed C‒C bond formation, retro-aza-Michael addition and a lactamization process. Upon further derivation, we leverage this homologation platform to realize modular insertion of one- or two-carbon units into the aliphatic rings. The conversion of a single azacycle into up to five others provides a promising toolbox for diversifying existing drug candidates and increasing the prospects for clinical success.<figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"19 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and characterization of a triplet nitrene. 三重芘的分离和表征。

IF 19.2 1区化学

Nature chemistry Pub Date : 2024-11-19 DOI: 10.1038/s41557-024-01669-9

Dongmin Wang, Wang Chen, Haonan Chen, Yizhen Chen, Shengfa Ye, Gengwen Tan

引用次数: 0

Catalysis-enabled amine sorting 催化胺分选

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-18 DOI: 10.1038/s41557-024-01676-w

Steven J. Malcolmson

引用次数: 0

Dynamic amine sorting enables multiselective construction of unsymmetrical chiral diamines 动态胺分选实现了不对称手性二胺的多选择性构建

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-18 DOI: 10.1038/s41557-024-01673-z

Shoule Cai, Zeyu Zhao, Guoqing Yang, Hanmin Huang

{"title":"Dynamic amine sorting enables multiselective construction of unsymmetrical chiral diamines","authors":"Shoule Cai, Zeyu Zhao, Guoqing Yang, Hanmin Huang","doi":"10.1038/s41557-024-01673-z","DOIUrl":"https://doi.org/10.1038/s41557-024-01673-z","url":null,"abstract":"Precisely differentiating chemicals featuring minor discrepancies is the prerequisite for achieving high selectivities in both chemical synthesis and biological activities. However, efficient strategies to differentiate and sort such congeneric compounds are lacking, posing daunting challenges for synthetic endeavours aimed at their orderly incorporation. Here we report a dynamic amine-sorting strategy that incorporates the chemoselective formation of the aminomethyl cyclopalladated complex to achieve the efficient differentiation of amine congeners. A series of amines sharing similar three-dimensional structures and properties, as well as possessing notoriously strong binding ability to metals, can be efficiently differentiated, enabling the highly chemo-, regio- and enantioselective multicomponent aminomethylamination of dienes to construct a variety of unsymmetrical chiral diamines. This dynamic amine-sorting strategy tackles the long-standing challenge of precise differentiation and orderly incorporation of aliphatic amines with subtle differences. From a broader perspective, the success demonstrates that meticulously designed metal complexes can provide flexible and general solutions for controlling delicate selectivities in sophisticated synthesis.<figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"197 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pore configuration control in hybrid azolate ultra-microporous frameworks for sieving propylene from propane 用于筛分丙烷中丙烯的混合叠氮化物超微孔框架的孔构型控制

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-15 DOI: 10.1038/s41557-024-01672-0

Yong-Jun Tian, Chenghua Deng, Li Zhao, Jin-Sheng Zou, Xue-Cui Wu, Yanan Jia, Ze-Yang Zhang, Jie Zhang, Yun-Lei Peng, Guangjin Chen, Michael J. Zaworotko

{"title":"Pore configuration control in hybrid azolate ultra-microporous frameworks for sieving propylene from propane","authors":"Yong-Jun Tian, Chenghua Deng, Li Zhao, Jin-Sheng Zou, Xue-Cui Wu, Yanan Jia, Ze-Yang Zhang, Jie Zhang, Yun-Lei Peng, Guangjin Chen, Michael J. Zaworotko","doi":"10.1038/s41557-024-01672-0","DOIUrl":"https://doi.org/10.1038/s41557-024-01672-0","url":null,"abstract":"Developing porous adsorbents for the complete sieving of propylene/propane mixtures represents an alternative method to energy-intensive cryogenic distillation processes. However, the similar physical properties of these molecules and the inherent trade-off among adsorption capacity, selectivity, diffusion kinetic and host–guest binding interactions in molecular sieving adsorbents makes their separation challenging. Here we report the separation of propylene/propane mixtures through a crystalline porous material (HAF-1) that features channels and shrinkage throats—the latter defined as narrower channels that connect the main channels and a molecular pocket—where the throat aperture is between the kinetic diameters of propylene and propane. Single-crystal X-ray diffraction and computational simulation reveal that the shrinkage channels and hanging molecular pockets are key to ensure high sieving efficiency and high propylene adsorption capacity. Dynamic breakthrough experiments show that HAF-1 enables the achievement of high-purity (≥99.7%) propylene with a productivity of 33.9 l kg−1 by just one adsorption–desorption circle from propylene/propane mixtures.<figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"44 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular-scale dissipative chemistry drives the formation of nanoscale assemblies and their macroscale transport. 分子尺度的耗散化学推动了纳米尺度集合体的形成及其宏观传输。

IF 19.2 1区化学

Nature chemistry Pub Date : 2024-11-08 DOI: 10.1038/s41557-024-01665-z

Kai Liu, Alex W P Blokhuis, Sietse J Dijt, Juntian Wu, Shana Hamed, Armin Kiani, Bartosz M Matysiak, Sijbren Otto

{"title":"Molecular-scale dissipative chemistry drives the formation of nanoscale assemblies and their macroscale transport.","authors":"Kai Liu, Alex W P Blokhuis, Sietse J Dijt, Juntian Wu, Shana Hamed, Armin Kiani, Bartosz M Matysiak, Sijbren Otto","doi":"10.1038/s41557-024-01665-z","DOIUrl":"https://doi.org/10.1038/s41557-024-01665-z","url":null,"abstract":"Fuelled chemical systems have considerable functional potential that remains largely unexplored. Here we report an approach to transient amide bond formation and use it to harness chemical energy and convert it to mechanical motion by integrating dissipative self-assembly and the Marangoni effect in a source-sink system. Droplets are formed through dissipative self-assembly following the reaction of octylamine with 2,3-dimethylmaleic anhydride. The resulting amides are hydrolytically labile, making the droplets transient, which enables them to act as a source of octylamine. A sink for octylamine was created by placing a drop of oleic acid at the air-water interface. This source-sink system sets up a gradient in surface tension, which gives rise to a macroscopic Marangoni flow that can transport the droplets in solution with tunable speed. Carbodiimides can fuel this motion by converting diacid waste back to anhydride. This study shows how fuelling at the molecular level can, via assembly at the supramolecular level, lead to liquid flow at the macroscopic level.","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":" ","pages":""},"PeriodicalIF":19.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142623932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatiotemporal protein interactome profiling through condensation-enhanced photocrosslinking 通过缩聚增强光交联技术绘制时空蛋白质相互作用组图谱

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-11-05 DOI: 10.1038/s41557-024-01663-1

Kexin Li, Xiao Xie, Rui Gao, Zhaoming Chen, Mingdong Yang, Zhihui Wen, Yicheng Weng, Xinyuan Fan, Gong Zhang, Lu Liu, Xiangmei Zeng, Yu Han, Mengrui Cao, Xin Wang, Jiaofeng Li, Zhenlin Yang, Tingting Li, Peng R. Chen

{"title":"Spatiotemporal protein interactome profiling through condensation-enhanced photocrosslinking","authors":"Kexin Li, Xiao Xie, Rui Gao, Zhaoming Chen, Mingdong Yang, Zhihui Wen, Yicheng Weng, Xinyuan Fan, Gong Zhang, Lu Liu, Xiangmei Zeng, Yu Han, Mengrui Cao, Xin Wang, Jiaofeng Li, Zhenlin Yang, Tingting Li, Peng R. Chen","doi":"10.1038/s41557-024-01663-1","DOIUrl":"https://doi.org/10.1038/s41557-024-01663-1","url":null,"abstract":"Resolving protein–protein interactions (PPIs) inside biomolecular condensates is crucial for elucidating their functions and regulation mechanisms. The transient nature of condensates and the multiple localizations of clients, however, have rendered it challenging to determine compartment-specific PPIs. Here we developed a condensation-enhanced, spatially directed, metabolic incorporation-assisted photocrosslinking strategy—termed DenseMAP—for spatiotemporally resolved dissection of the direct protein interactome within condensates. By leveraging our condensation-enhanced photocrosslinker and the spatially directed biotin tagging, DenseMAP enabled stress-granule-specific interactome mapping of the N6-methyladenosine readers YTHDF1 and YTHDF2, and uncovered the functional role of phosphorylation on the SARS-CoV-2 nucleocapsid protein in regulating virus replication. Further applying DenseMAP for direct interactome mapping of the subcompartmental scaffold protein NPM1 deciphered nucleolar granular component proteome, and unveiled the critical role of SUMOylation in controlling nucleolar proteome homeostasis. DenseMAP provides a platform technology for analysing functional PPI networks within subcellular and subcompartmental condensates under diverse physiological and/or pathological settings.<figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"5 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ubiquitin is a chemist’s playground 泛素是化学家的乐园

IF 19.2 1区化学

Nature chemistry Pub Date : 2024-10-31 DOI: 10.1038/s41557-024-01660-4

Jakob Farnung, Brenda A. Schulman

引用次数: 0

Protocells by spontaneous reaction of cysteine with short-chain thioesters 半胱氨酸与短链硫酯的自发反应产生原电池

IF 21.8 1区化学

Nature chemistry Pub Date : 2024-10-30 DOI: 10.1038/s41557-024-01666-y

Christy J. Cho, Taeyang An, Yei-Chen Lai, Alberto Vázquez-Salazar, Alessandro Fracassi, Roberto J. Brea, Irene A. Chen, Neal K. Devaraj

{"title":"Protocells by spontaneous reaction of cysteine with short-chain thioesters","authors":"Christy J. Cho, Taeyang An, Yei-Chen Lai, Alberto Vázquez-Salazar, Alessandro Fracassi, Roberto J. Brea, Irene A. Chen, Neal K. Devaraj","doi":"10.1038/s41557-024-01666-y","DOIUrl":"https://doi.org/10.1038/s41557-024-01666-y","url":null,"abstract":"All known forms of life are composed of cells, whose boundaries are defined by lipid membranes that separate and protect cell contents from the environment. It is unknown how the earliest forms of life were compartmentalized. Several models have suggested a role for single-chain lipids such as fatty acids, but the membranes formed are often unstable, particularly when made from shorter alkyl chains (≤C8) that were probably more prevalent on prebiotic Earth. Here we show that the amino acid cysteine can spontaneously react with two short-chain (C8) thioesters to form diacyl lipids, generating protocell-like membrane vesicles. The three-component reaction takes place rapidly in water using low concentrations of reactants. Silica can catalyse the formation of protocells through a simple electrostatic mechanism. Several simple aminothiols react to form diacyl lipids, including short peptides. The protocells formed are compatible with functional ribozymes, suggesting that coupling of multiple short-chain precursors may have provided membrane building blocks during the early evolution of cells.<figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"41 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142541270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0