发布求助
文献互助 智能选刊 最新文献

Organic & Biomolecular Chemistry最新文献

筛选
英文 中文
Visible-light-mediated decarboxylative allylation of vinylcyclopropanes with α-keto acids toward β,γ-alkenyl ketones. 可见光介导的乙烯基环丙烷与α-酮酸脱羧烯丙基化生成β，γ-烯基酮。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-28 DOI: 10.1039/d5ob00679a
Zhuofan Bai, Yun Sa, Xing He, Hongguang Du, Duanyang Kong
{"title":"Visible-light-mediated decarboxylative allylation of vinylcyclopropanes with α-keto acids toward β,γ-alkenyl ketones.","authors":"Zhuofan Bai, Yun Sa, Xing He, Hongguang Du, Duanyang Kong","doi":"10.1039/d5ob00679a","DOIUrl":"https://doi.org/10.1039/d5ob00679a","url":null,"abstract":"<p><p>β,γ-Alkenyl ketones are privileged structural motifs in organic synthesis with broad pharmaceutical relevance. In this context, we have successfully developed a visible-light-driven radical cross-coupling of α-keto acids with vinylcyclopropanes, enabling the direct synthesis of a variety of β,γ-alkenyl ketones without the need for external metal co-catalysts, oxidants, or additives. Mechanistic studies support a radical-polar crossover pathway involving photogenerated acyl radicals and ring-opening of VCPs. The synthetic utility of this method is demonstrated by the concise, five-step synthesis of the clinical drug Seratrodast.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synthesis of the tricyclic skeleton of aberrarone. 异芳酮三环骨架的合成。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-28 DOI: 10.1039/d5ob00644a
Guoqing Sui, Xiaoqing Song, Huihui Guo, Xiaolan Xie, Li Ren, Wenming Zhou, Hong-Dong Hao
{"title":"Synthesis of the tricyclic skeleton of aberrarone.","authors":"Guoqing Sui, Xiaoqing Song, Huihui Guo, Xiaolan Xie, Li Ren, Wenming Zhou, Hong-Dong Hao","doi":"10.1039/d5ob00644a","DOIUrl":"https://doi.org/10.1039/d5ob00644a","url":null,"abstract":"<p><p>A synthesis of the 6-5-5 tricyclic skeleton of the diterpenoid aberrarone is reported. The synthesis strategically features an intermolecular Diels-Alder reaction to construct the <i>cis</i>-hydrindane moiety and a cross-coupling-isomerization-intramolecular Alder-ene cyclization cascade to efficiently assemble the 6-5-5 tricyclic skeleton of aberrarone.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Dual photoredox/copper-catalyzed selective difluoromethylthiolation of remote unactivated C(sp3)-H bonds at room temperature. 室温下远端非活化C(sp3)-H键的双光氧化还原/铜催化选择性二氟甲基硫基化。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00257e
Shengwen Li, Guanfeng Ji, Wengui Wang, Shoufeng Wang
{"title":"Dual photoredox/copper-catalyzed selective difluoromethylthiolation of remote unactivated C(sp<sup>3</sup>)-H bonds at room temperature.","authors":"Shengwen Li, Guanfeng Ji, Wengui Wang, Shoufeng Wang","doi":"10.1039/d5ob00257e","DOIUrl":"https://doi.org/10.1039/d5ob00257e","url":null,"abstract":"<p><p>A photocatalysis/copper dual-catalyzed difluoromethylthiolation of remote unactivated C(sp<sup>3</sup>)-H bonds using <i>N</i>-fluorosulfonamides was reported. The combination of photoredox and copper catalysis led to mild reaction conditions with a broad substrate scope. Luminescence quenching experiments revealed that both <i>N</i>-fluorosulfonamides and the copper catalyst could quench the excited state of the Ru complex. Primary, secondary and tertiary C(sp<sup>3</sup>)-H bonds could be transformed, offering an efficient way to construct difluoromethylthio-bearing compounds.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Ribosomal incorporation of N-acetyl-3,5-bis(chloromethyl)benzylthio-L-alanine for developing an mRNA-displayed bicyclic peptide library cyclized via 1,3,5-tris(methyl)benzene. 核糖体结合n -乙酰-3,5-二（氯甲基）苄基硫代- l-丙氨酸，形成经1,3,5-三（甲基）苯环化的mrna双环肽文库。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00693g
Maolin Li, Haipeng Yu, Jie Cheng, Wenfeng Cai, Youming Zhang, Yizhen Yin
{"title":"Ribosomal incorporation of <i>N</i>-acetyl-3,5-bis(chloromethyl)benzylthio-L-alanine for developing an mRNA-displayed bicyclic peptide library cyclized <i>via</i> 1,3,5-tris(methyl)benzene.","authors":"Maolin Li, Haipeng Yu, Jie Cheng, Wenfeng Cai, Youming Zhang, Yizhen Yin","doi":"10.1039/d5ob00693g","DOIUrl":"https://doi.org/10.1039/d5ob00693g","url":null,"abstract":"<p><p>We report a novel method for constructing an mRNA-displayed bicyclic peptide library cyclized through 1,3,5-tris(methyl)benzene by ribosomally incorporating <i>N</i>-acetyl-3,5-bis(chloromethyl)benzylthio-L-alanine, enabling the selection of bicyclic peptides against specific targets. Using this method, we successfully identified bicyclic peptides that bind to human Trop2 and VEGF165, providing a new strategy for selecting bicyclic peptides cyclized by trimethylbenzene.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Nickel-catalyzed reductive coupling of 2-pyridyl esters with unactivated alkyl chlorides: a universal synthesis of aryl-alkyl and dialkyl ketones via dynamic halide exchange. 镍催化的2-吡啶酯与未活化的烷基氯的还原偶联：通过动态卤化物交换合成芳烷基酮和二烷基酮的通用方法。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00670h
Cong Guo, Zhen-Ying Wang, Wen-Heng Liu, Shi-Zheng Liu, Yi-Zheng Cheng, Qiang Li, Jianmin Dou
{"title":"Nickel-catalyzed reductive coupling of 2-pyridyl esters with unactivated alkyl chlorides: a universal synthesis of aryl-alkyl and dialkyl ketones <i>via</i> dynamic halide exchange.","authors":"Cong Guo, Zhen-Ying Wang, Wen-Heng Liu, Shi-Zheng Liu, Yi-Zheng Cheng, Qiang Li, Jianmin Dou","doi":"10.1039/d5ob00670h","DOIUrl":"https://doi.org/10.1039/d5ob00670h","url":null,"abstract":"<p><p>Direct synthesis of ketones <i>via</i> a nickel-catalyzed reductive coupling between aryl, 1°, 2°, 3°-alkyl 2-pyridyl esters and unactivated 1°, 2°-alkyl chlorides has been reported. This approach provides a highly efficient catalytic system to synthesize aryl-alkyl and dialkyl ketones in moderate to excellent yields with good functional group tolerance from easily accessible starting materials. Mechanistic studies reveal that a TBAI-mediated dynamic halide exchange process maintains a controlled low concentration of alkyl iodides, balancing the reactivity and cross-selectivity of alkyl chlorides.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Systematic studies toward the synthesis of D-galactosamine-containing coumarin glycosides. 含d -半乳糖胺香豆素糖苷合成的系统研究。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00746a
Hannah S Wootton, Gavin J Miller
{"title":"Systematic studies toward the synthesis of D-galactosamine-containing coumarin glycosides.","authors":"Hannah S Wootton, Gavin J Miller","doi":"10.1039/d5ob00746a","DOIUrl":"https://doi.org/10.1039/d5ob00746a","url":null,"abstract":"<p><p>An <i>O</i>-glycosylation method for accessing coumarin glycosides is presented. We report the reaction of 6,8-difluoro-7-hydroxy-4-methylcoumarin and 4-methylumbelliferone with a variety of glycosyl imidate donors using BF<sub>3</sub>·Et<sub>2</sub>O as activator to access a series of coumarin glycosides in 64%-76% isolated yields. Several reaction parameters are evaluated including promotors, temperature and reagent equivalents. Following initial methodology development using simple D-glucose donors, D-galactosamino mono- and disaccharides are explored as substrates, showcasing applicability towards late-stage transformation of biologically relevant chondroitin sulfate glycosides. Glycosylation diastereoselectivity trends were also considered, proposing that the identity of the D-galactosamino <i>N</i>-protecting group and the coumarin acceptor contribute to observed anomeric product ratios. This methodology provides a convenient access to D-galactosamino-coumarin glycoconjugates and provides a benchmark for the development of related systems for biological evaluation.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Mild trifluoromethylsulfinylation of alcohols and amines via N-hydroxyphthalimide-O-trifluoromethanesulfinate. 通过n -羟基邻苯二胺- o -三氟甲烷磺酸盐对醇和胺进行轻度三氟甲基亚砜化。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00566c
Liuqing Yang, Hongwei Wang, Xinyu Wang, Menglin Jiang, Dianhu Zhu
{"title":"Mild trifluoromethylsulfinylation of alcohols and amines <i>via N</i>-hydroxyphthalimide-<i>O</i>-trifluoromethanesulfinate.","authors":"Liuqing Yang, Hongwei Wang, Xinyu Wang, Menglin Jiang, Dianhu Zhu","doi":"10.1039/d5ob00566c","DOIUrl":"https://doi.org/10.1039/d5ob00566c","url":null,"abstract":"<p><p>Direct and efficient trifluoromethylsulfinylation of alcohols and amines is highly desirable in the drug design field. Herein, we report a simple trifluoromethylsulfinylation of alcohols and amines at room temperature under remarkably mild conditions, enabled by a powerful <i>N</i>-hydroxyphthalimide-<i>O</i>-trifluoromethanesulfinate. This protocol was conducted under activator and additive-free conditions, and is effective for the direct transfer of the CF<sub>3</sub>S(O) group to a series of alkyl alcohols, alkyl amines and aromatic amines with good to excellent yields and superb functional group tolerance, as well as facile extension to late-stage trifluoromethylsulfinylation of complex biologically active alcohols and amines. Preliminary mechanistic experiments suggest that the direct nucleophilic attack of the highly active <i>N</i>-hydroxyphthalimide-<i>O</i>-trifluoromethanesulfinate is the key factor for the success of the electrophilic trifluoromethylsulfinylation of alcohols and amines in the absence of any activators or additives.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Transition metal-free one-pot tandem chemoselective reduction and cyclization of 3/5-(2-nitrophenyl)-1H-pyrazoles using sodium dithionite. 二亚硝酸钠对3/5-（2-硝基苯）- 1h -吡唑的无过渡金属一锅串联化学选择性还原和环化。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00610d
Danaboina Srikanth, Gayatri Diliprao Shejul, Swanand Vinayak Joshi, Abdul Kalam, Avvaru Subha Jahnavi, Amol G Dikundwar, Sidharth Chopra, Madhavi Venkata Yaddanapudi, Srinivas Nanduri
{"title":"Transition metal-free one-pot tandem chemoselective reduction and cyclization of 3/5-(2-nitrophenyl)-1<i>H</i>-pyrazoles using sodium dithionite.","authors":"Danaboina Srikanth, Gayatri Diliprao Shejul, Swanand Vinayak Joshi, Abdul Kalam, Avvaru Subha Jahnavi, Amol G Dikundwar, Sidharth Chopra, Madhavi Venkata Yaddanapudi, Srinivas Nanduri","doi":"10.1039/d5ob00610d","DOIUrl":"https://doi.org/10.1039/d5ob00610d","url":null,"abstract":"<p><p>A sodium dithionite (Na<sub>2</sub>S<sub>2</sub>O<sub>4</sub>) mediated tandem chemoselective reductive cyclization of 5-(2-nitrophenyl)-1<i>H</i>-pyrazoles with aldehydes/carbon disulfide is developed for the synthesis of pyrazolo[1,5-<i>c</i>]quinazolines. The protocol involves one pot <i>in situ</i> reduction of 5-(2-nitrophenyl)-1<i>H</i>-pyrazoles, followed by intermolecular cyclization with aldehydes or carbon disulfide to afford the pyrazolo[1,5-<i>c</i>]quinazolines. The protocol is further expanded for the synthesis of pyrazolo[4,3-<i>c</i>]quinolines from 3-(2-nitrophenyl)-1-phenyl-1<i>H</i>-pyrazole-4-carbaldehyde <i>via</i> one pot <i>in situ</i> reduction followed by intramolecular cyclization. Notably, the use of Na<sub>2</sub>S<sub>2</sub>O<sub>4</sub> as the reducing agent enables a metal, ligand, and additive-free approach, wide substrate scope, and scalability up to gram scale. The synthesized compounds were studied for photophysical properties in ACN and MeOH, the compound 7c, which contains an electron-donating methoxy group, exhibited a greater bathochromic shift. Notably, the pyrazolo[1,5-<i>c</i>]quinazoline-5(6<i>H</i>)-thione derivatives 5a and 5d demonstrated selective inhibition of <i>Staphylococcus aureus</i>, with minimum inhibitory concentrations (MICs) of 2 and 4 μg mL<sup>-1</sup>, respectively. ESI-MS and DFT studies were conducted for the identification of the key intermediates and to elucidate the plausible reaction mechanism.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
n Bu4NBr-catalyzed esterification of methoxyarenes with acyl bromide. n bu4nbr催化甲氧基芳烃与酰基溴的酯化反应。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5ob00612k
Ting Sun, Wen Chao Zhu, Qin Zhu, Shao Yin Wang, Guo Dong Wang, Jiang-Fei Li
{"title":"<sup><i>n</i></sup> Bu<sub>4</sub>NBr-catalyzed esterification of methoxyarenes with acyl bromide.","authors":"Ting Sun, Wen Chao Zhu, Qin Zhu, Shao Yin Wang, Guo Dong Wang, Jiang-Fei Li","doi":"10.1039/d5ob00612k","DOIUrl":"https://doi.org/10.1039/d5ob00612k","url":null,"abstract":"<p><p>The catalytic esterification of methoxyarenes remains challenging, especially for C(sp<sup>3</sup>)-O bond functionalization. Herein, we report a simple and efficient method using <sup><i>n</i></sup>Bu<sub>4</sub>NBr as a catalyst to directly convert methoxyarenes and acyl bromides into esters under solvent-free conditions. This strategy provides a simple and efficient approach, achieving yields of up to 95%.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Recent applications of Cyrene as a chiral synthon. 昔兰尼手性合成物的最新应用。
IF 2.9 3区 化学
Organic & Biomolecular Chemistry Pub Date : 2025-05-23 DOI: 10.1039/d5ob00642b
Yu A Khalilova, L Kh Faizullina
{"title":"Recent applications of Cyrene as a chiral synthon.","authors":"Yu A Khalilova, L Kh Faizullina","doi":"10.1039/d5ob00642b","DOIUrl":"https://doi.org/10.1039/d5ob00642b","url":null,"abstract":"<p><p>Dihydrolevoglucosenone (Cyrene™) is a unique chiral molecule with great synthetic potential. Currently, Cyrene has been successfully used as a dipolar aprotonic solvent with green chemistry requirements, which is very important for both medicine and industry. There are several review articles on this topic, which we have referenced in this article. In this review, we describe the prospect of using Cyrene as a chiral molecule in organic synthesis, including an emphasis on the route to practically important objects based on it. The review presents chemical transformations of Cyrene by reactive centers (carbonyl and methylene groups, acetal center, anhydro bridge) with an eye to valuable chiral molecules and discusses the mechanism of some interesting transformations. We hope that the review will be useful to scientists working not only in organic but also in medicinal and polymer chemistry. The review summarizes the literature data for the last 10 years, with the rare exception of earlier works in view of the importance of using the published material.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信