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Expedient Synthesis of [small alpha]-S-(1[rightward arrow]6)-Linked Pentaglucosyl Thiol

Org. and Biomol. Chem. - 25 July, 2014 - 10:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01094A, PaperHuali Wang, Xiangming Zhu
An [small alpha]-S-(1[rightward arrow]6)-linked pentaglucosyl thiol has been synthesized in a convenient and stereoselective way. Key steps of the synthesis involved thioglycosylation of 6-iodinated sugars with [small alpha]-glycosyl thiols under phase transfer conditions....
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Recent Advances in Catalytic C-N bond Formation: A Comparison of Cascade Hydroaminomethylation and Reductive Amination Reactions with the Corresponding Hydroamidomethylation and Reductive Amidation Reactions

Org. and Biomol. Chem. - 25 July, 2014 - 10:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB00620H, Review Articlesaeed raoufmoghaddam
The design and catalytic implementation of tandem reactions to selectively create nitrogen-containing products under mild conditions has encountered numerous challenges in synthetic chemistry. Several known classes of the homogeneously catalyzed...
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Total synthesis of putative montamine and a proposed structural reassignment

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01304B, PaperLachlan M. Blair, Elizabeth A. Colby Davie, Jonathan Sperry
The spectroscopic data for synthetic montamine does not match the proposed N,N[prime or minute]-linked structure and closely resembles a known 4,4[prime or minute]-bismoschamine natural product.
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Cross-catalytic peptide nucleic acid (PNA) replication based on templated ligation

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01158A, PaperAbhishek Singhal, Peter E. Nielsen
PNA replication via decameric template directed cross-catalytic ligation follows product inhibited kinetics yielding approximately two replication rounds.
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Ratiometric fluorescent chemosensor based on Tyrosine derivatives for monitoring mercury ions in aqueous solutions

Org. and Biomol. Chem. - 25 July, 2014 - 10:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01044B, PaperPoonaboina Thirupathi, Ponnaboina Saritha, Keun-Hyeung Lee
Ratiometric fluorescent chemosensors, 1 and 2 were synthesized based on Tyrosine amino acid derivatives with a pyrene fluorophore. 1 and 2 displayed high selectivity for Hg(II) ions among 13 metal...
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A General catalyst for Suzuki-Miyaura and Sonogashira reactions of aryl and heteroaryl chlorides in water

Org. and Biomol. Chem. - 25 July, 2014 - 10:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB00846D, PaperHui Peng, Ya-Qin Chen, Shu-Lan Mao, Yunxiao Pi, You Chen, Zeyu Lian, Tong Meng, Shenghua Liu, Guang-Ao Yu
We report the synthesis of 2-(3-sulfonatomesityl)-5-sulfonatoindenyl) dicyclohexylphosphine hydrate sodium salt and its use in palladium-catalyzed Suzuki-Miyaura and Sonogashira coupling reactions in water (and biphasic water-organic solvent mixtures) to prepare a...
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Highly Efficient Synthesis of A Tristable Molecular Shuttle and Its Controlled Motion Under Chemical Stimuli

Org. and Biomol. Chem. - 25 July, 2014 - 10:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01283F, PaperZheng Meng, Chuan-Feng Chen
According to the threading-followed-by-stoppering approach, a tristable molecular shuttle could be efficiently synthesized in 76% yield by using K+ ions template and bulky isocyanate stopper. This high yield was reasoned...
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Iridium(I) hydroxides in catalysis: rearrangement of allylic alcohols to ketones

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01428F, PaperDavid J. Nelson, Jose A. Fernandez-Salas, Byron J. Truscott, Steven P. Nolan
The iridium(I) hydroxide complex [Ir(OH)(COD)(IiPr)] has been shown to be a competent catalyst for the rearrangement of allylic alcohols to ketones.
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A one-pot synthetic strategy for construction of the dibenzodiazepine skeleton via a transition metal-free process

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB00871E, PaperShuai Fang, Xiaoyi Niu, Zeyuan Zhang, Yan Sun, Xiaomeng Si, Cuicui Shan, Lei Wei, Aiqing Xu, Lei Feng, Chen Ma
A one-pot transition metal-free methodology for constructing pharmacologically active dibenzodiazepine derivatives was developed.
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Diaporine, a novel endophyte-derived regulator of macrophage differentiation

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01123F, CommunicationHao Chen Wu, Hui Ming Ge, Le Yun Zang, Yun Cheng Bei, Zhi Yuan Niu, Wei Wei, Xiu Jing Feng, Sen Ding, Seik Weng Ng, Ping Ping Shen, Ren Xiang Tan
Diaporine (1), an unprecedented symmetric polyketide, was characterized from the endophytic fungus Diaporthe sp. Diaporine was demonstrated to inhibit significantly the differentiation of macrophages.
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Folded alkyl chains in water-soluble capsules and cavitands

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01032A, CommunicationJesse V. Gavette, Kang-Da Zhang, Dariush Ajami, Julius Rebek
A deep cavitand with ionic "feet" dimerizes around hydrophobic compounds in D2O.
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Relative contractile motion of the rings in a switchable palindromic [3]rotaxane in aqueous solution driven by radical-pairing interactions

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, 12,6089-6093
DOI: 10.1039/C4OB01228C, CommunicationLeah S. Witus, Karel J. Hartlieb, Yuping Wang, Aleksandrs Prokofjevs, Marco Frasconi, Jonathan C. Barnes, Edward J. Dale, Albert C. Fahrenbach, J. Fraser Stoddart
This communication describes a mechanically interlocked molecule (MIM), capable of switchable and reversible linear molecular motion.
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Formal synthesis of (+)-3-epi-eupomatilone-6 and the 3,5-bis-epimer

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01078G, PaperSariya Yodwaree, Darunee Soorukram, Chutima Kuhakarn, Patoomratana Tuchinda, Vichai Reutrakul, Manat Pohmakotr
The formal synthesis of (+)-3-epi-eupomatilone-6 and the 3,5-bis-epimer has been accomplished using stereoselective conjugate addition of vinylmagnesium chloride to a chiral [small alpha],[small beta]-unsaturated N-acyl oxazolidinone followed by [small alpha]-methylation as the key steps.
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A study on the chiral inversion of mandelic acid in humans

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C3OB42515K, PaperMaksims Yevglevskis, Catherine R. Bowskill, Chloe C. Y. Chan, Justin H.-J. Heng, Michael D. Threadgill, Timothy J. Woodman, Matthew D. Lloyd
Mandelic acid 1 undergoes uni-directional chiral inversion in mammalian cells by a separate pathway to that of Ibuprofen 3.
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Convergent chemoenzymatic synthesis of a library of glycosylated analogues of pramlintide: structure-activity relationships for amylin receptor agonism

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01208A, PaperRenata Kowalczyk, Margaret A. Brimble, Yusuke Tomabechi, Antony J. Fairbanks, Madeleine Fletcher, Debbie L. Hay
The synthesis of a library of N-glycosylated pramlintide analogues to establish the SAR of amylin receptor agonism has been undertaken.
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TBAI-catalyzed oxidative synthesis of benzamides from acetophenones and carbinols

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01203H, CommunicationMuhammad Sharif, Jianbin Chen, Peter Langer, Matthias Beller, Xiao-Feng Wu
An interesting and convenient procedure for the oxidative transformation of acetophenones and carbinols to primary benzamides has been developed.
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Metal-free oxidative olefination of primary amines with benzylic C-H bonds through direct deamination and C-H bond activation

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01025F, CommunicationLiang Gong, Li-Juan Xing, Tong Xu, Xue-Ping Zhu, Wen Zhou, Ning Kang, Bin Wang
An oxidative olefination reaction between aliphatic primary amines and benzylic sp3 C-H bonds has been achieved using N-bromosuccinimide as catalyst and tert-butyl hydroperoxide as oxidant.
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Highly selective fluorescence off-on probes for biothiols and imaging in live cells

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01031K, PaperDi Zhang, Wei Chen, Jianming Kang, Yong Ye, Yufen Zhao, Ming Xian
Three sulfonyl benzothiazole-based fluorescence off-on probes for biothiols are developed and applied for visualizing endogenous thiols in living cells.
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Photo-responsive [2]catenanes: synthesis and properties

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01120A, PaperZiyong Li, Fang Hu, Guoxing Liu, Wen Xue, Xiaoqiang Chen, Sheng Hua Liu, Jun Yin
A series of novel dithienylethene-based macrocycles containing ammonium moieties has been synthesized.
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Design, synthesis and biological evaluation of bicyclic iminosugar hybrids: conformational constraint as an effective tool for tailoring the selectivity of [small alpha]-glucosidase inhibitors

Org. and Biomol. Chem. - 25 July, 2014 - 10:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB00486H, PaperInderpreet Arora, Vivek Kr. Kashyap, Alok Kumar Singh, Arunava Dasgupta, Brijesh Kumar, Arun K. Shaw
Selective inhibition by conformational restriction of pyrrolidine iminosugars. Click conceived pyrrolidotriazoles incorporate essential features to access the mimicry of the transition state of carbohydrate processing enzymes.
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