101
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Sempere Y, Carreira EM. Trimethyl Orthoacetate and Ethylene Glycol Mono-Vinyl Ether as Enolate Surrogates in Enantioselective Iridium-Catalyzed Allylation. Angew Chem Int Ed Engl 2018; 57:7654-7658. [DOI: 10.1002/anie.201803558] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Indexed: 01/09/2023]
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102
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Wolleb H, Ogawa S, Schneider M, Shemet A, Muri J, Kopf M, Carreira EM. Synthesis and Structure-Activity Relationship Studies of Anti-Inflammatory Epoxyisoprostane Analogues. Org Lett 2018; 20:3014-3016. [PMID: 29737177 DOI: 10.1021/acs.orglett.8b01042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The lactone derivative of the epoxyisoprostane EC is a highly effective inhibitor of the secretion of the proinflammatory cytokine IL-6. Herein, a modular synthesis of analogues is described, allowing flexible variations of the cyclic side chain of the parent lactone. A structure-activity relationship study identified a lactam analogue that retains the high activity. Furthermore, the exocyclic allylic alcohol was shown to be crucial for the observed effect.
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103
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Sobotzki N, Schafroth MA, Rudnicka A, Koetemann A, Marty F, Goetze S, Yamauchi Y, Carreira EM, Wollscheid B. HATRIC-based identification of receptors for orphan ligands. Nat Commun 2018; 9:1519. [PMID: 29666374 PMCID: PMC5904110 DOI: 10.1038/s41467-018-03936-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 03/22/2018] [Indexed: 12/14/2022] Open
Abstract
Cellular responses depend on the interactions of extracellular ligands, such as nutrients, growth factors, or drugs, with specific cell-surface receptors. The sensitivity of these interactions to non-physiological conditions, however, makes them challenging to study using in vitro assays. Here we present HATRIC-based ligand receptor capture (HATRIC-LRC), a chemoproteomic technology that successfully identifies target receptors for orphan ligands on living cells ranging from small molecules to intact viruses. HATRIC-LRC combines a click chemistry-based, protein-centric workflow with a water-soluble catalyst to capture ligand-receptor interactions at physiological pH from as few as 1 million cells. We show HATRIC-LRC utility for general antibody target validation within the native nanoscale organization of the surfaceome, as well as receptor identification for a small molecule ligand. HATRIC-LRC further enables the identification of complex extracellular interactomes, such as the host receptor panel for influenza A virus (IAV), the causative agent of the common flu. Technologies for identifying receptor-ligand pairs on living cells at physiological conditions remain scarce. Here, the authors develop a mass spectrometry-based ligand receptor capture technology that can identify receptors for a diverse range of ligands at physiological pH with as few as a million cells.
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104
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Petrone DA, Isomura M, Franzoni I, Rössler SL, Carreira EM. Allenylic Carbonates in Enantioselective Iridium-Catalyzed Alkylations. J Am Chem Soc 2018; 140:4697-4704. [DOI: 10.1021/jacs.8b01416] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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105
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Soethoudt M, Stolze SC, Westphal MV, van Stralen L, Martella A, van Rooden EJ, Guba W, Varga ZV, Deng H, van Kasteren SI, Grether U, IJzerman AP, Pacher P, Carreira EM, Overkleeft HS, Ioan-Facsinay A, Heitman LH, van der Stelt M. Selective Photoaffinity Probe That Enables Assessment of Cannabinoid CB 2 Receptor Expression and Ligand Engagement in Human Cells. J Am Chem Soc 2018; 140:6067-6075. [PMID: 29420021 PMCID: PMC5958339 DOI: 10.1021/jacs.7b11281] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
![]()
Chemical
tools and methods that report on G protein-coupled receptor
(GPCR) expression levels and receptor occupancy by small molecules
are highly desirable. We report the development of LEI121 as a photoreactive
probe to study the type 2 cannabinoid receptor (CB2R),
a promising GPCR to treat tissue injury and inflammatory diseases.
LEI121 is the first CB2R-selective bifunctional probe that
covalently captures CB2R upon photoactivation. An incorporated
alkyne serves as ligation handle for the introduction of reporter
groups. LEI121 enables target engagement studies and visualization
of endogenously expressed CB2R in HL-60 as well as primary
human immune cells using flow cytometry. Our findings show that strategically
functionalized probes allow monitoring of endogenous GPCR expression
and engagement in human cells using tandem photoclick chemistry and
hold promise as biomarkers in translational drug discovery.
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106
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Sievertsen N, Carreira EM. Apoc Social: A Mobile Interactive and Social Learning Platform for Collaborative Solving of Advanced Problems in Organic Chemistry. Chimia (Aarau) 2018; 72:43-47. [DOI: 10.2533/chimia.2018.43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Mobile devices such as smartphones are carried in the pockets of university students around the globe and are increasingly cheap to come by. These portable devices have evolved into powerful and interconnected handheld computers, which, among other applications, can be used as advanced
learning tools and providers of targeted, curated content. Herein, we describe Apoc Social (Advanced Problems in Organic Chemistry Social), a mobile application that assists both learning and teaching college-level organic chemistry both in the classroom and on the go. With more than 750 chemistry
exercises available, Apoc Social facilitates collaborative learning through discussion boards and fosters enthusiasm for complex organic chemistry.
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107
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Nannini LJ, Nemat SJ, Carreira EM. Total Synthesis of (+)‐Sarcophytin. Angew Chem Int Ed Engl 2018; 57:823-826. [DOI: 10.1002/anie.201711372] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Indexed: 11/05/2022]
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108
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109
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Westphal MV, Schafroth MA, Sarott RC, Imhof MA, Bold CP, Leippe P, Dhopeshwarkar A, Grandner JM, Katritch V, Mackie K, Trauner D, Carreira EM, Frank JA. Synthesis of Photoswitchable Δ9-Tetrahydrocannabinol Derivatives Enables Optical Control of Cannabinoid Receptor 1 Signaling. J Am Chem Soc 2017; 139:18206-18212. [DOI: 10.1021/jacs.7b06456] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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110
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Rössler SL, Schreib BS, Ginterseder M, Hamilton JY, Carreira EM. Total Synthesis and Stereochemical Assignment of (+)-Broussonetine H. Org Lett 2017; 19:5533-5536. [DOI: 10.1021/acs.orglett.7b02620] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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111
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Shemet A, Carreira EM. Total Synthesis of (−)-Rhazinilam and Formal Synthesis of (+)-Eburenine and (+)-Aspidospermidine: Asymmetric Cu-Catalyzed Propargylic Substitution. Org Lett 2017; 19:5529-5532. [DOI: 10.1021/acs.orglett.7b02619] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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112
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Boshkow J, Fischer S, Bailey AM, Wolfrum S, Carreira EM. Stereochemistry and biological activity of chlorinated lipids: a study of danicalipin A and selected diastereomers. Chem Sci 2017; 8:6904-6910. [PMID: 29147515 PMCID: PMC5632803 DOI: 10.1039/c7sc03124f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/07/2017] [Indexed: 11/21/2022] Open
Abstract
The syntheses of (+)-16-epi- and (+)-11,15-di-epi-danicalipin A (2 and 3) are reported. The conformations of the parent diols 5 and 6 as well as the corresponding disulfates 2 and 3 were determined on the basis of J-based configuration analysis and supported by calculations. The impact of configuration on membrane permeability in Gram-negative bacteria and mammalian cell lines was assessed as well as cytotoxicity. Although diastereomer 2 showed similar behavior to natural (+)-danicalipin A (1), strikingly, the more flexible C11,C15-epimer 3 had no effect on permeability and proved equally or more toxic towards multiple cell lines.
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113
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Wolleb H, Carreira EM. Total Synthesis of (+)-Dendrowardol C. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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114
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Sandmeier T, Krautwald S, Carreira EM. Stereoselective Synthesis of Piperidines by Iridium-Catalyzed Cyclocondensation. Angew Chem Int Ed Engl 2017; 56:11515-11519. [DOI: 10.1002/anie.201706374] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Indexed: 11/06/2022]
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115
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Sandmeier T, Krautwald S, Carreira EM. Stereoselective Synthesis of Piperidines by Iridium-Catalyzed Cyclocondensation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706374] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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116
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Wolleb H, Carreira EM. Total Synthesis of (+)-Dendrowardol C. Angew Chem Int Ed Engl 2017; 56:10890-10893. [DOI: 10.1002/anie.201705809] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Indexed: 11/08/2022]
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117
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Hönig M, Sondermann P, Turner NJ, Carreira EM. Enantioselective Chemo- and Biocatalysis: Partners in Retrosynthesis. Angew Chem Int Ed Engl 2017; 56:8942-8973. [DOI: 10.1002/anie.201612462] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 01/08/2023]
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118
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Hönig M, Sondermann P, Turner NJ, Carreira EM. Enantioselektive Chemo- und Biokatalyse: Partner in der Retrosynthese. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612462] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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119
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Hamilton JY, Rössler SL, Carreira EM. Enantio- and Diastereoselective Spiroketalization Catalyzed by Chiral Iridium Complex. J Am Chem Soc 2017; 139:8082-8085. [DOI: 10.1021/jacs.7b02856] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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120
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Schafroth MA, Rummelt SM, Sarlah D, Carreira EM. Enantioselective Iridium-Catalyzed Allylic Cyclizations. Org Lett 2017; 19:3235-3238. [PMID: 28573860 DOI: 10.1021/acs.orglett.7b01346] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A method for the enantioselective synthesis of carbo- and heterocyclic ring systems enabled through the combination of Lewis acid activation and iridium-catalyzed allylic substitution is described. The reaction proceeds with branched, allylic alcohols and carbon nucleophiles as well as heteronucleophiles to give a diverse set of ring systems in good yields and with high enantioselectivities. The utility of the method is highlighted by the asymmetric syntheses of erythrococcamides A and B.
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121
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Huchet QA, Trapp N, Kuhn B, Wagner B, Fischer H, Kratochwil NA, Carreira EM, Müller K. Partially fluorinated alkoxy groups − Conformational adaptors to changing environments. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.02.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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122
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123
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Möller GP, Müller S, Wolfstädter BT, Wolfrum S, Schepmann D, Wünsch B, Carreira EM. Oxetanyl Amino Acids for Peptidomimetics. Org Lett 2017; 19:2510-2513. [PMID: 28459595 DOI: 10.1021/acs.orglett.7b00745] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Peptides are important in the drug discovery process. In analogy to nonpeptidic small-molecule counterparts, they can sometimes suffer from disadvantages such as their low bioavailability and poor metabolic stability. Herein, we report the synthesis of new oxetanyl dipeptides and their incorporation into Leu-enkephalin analogues as proof-of-principle studies. The modular approach that is described enables the incorporation of a variety of oxetanyl amino acids into potential peptide therapeutics.
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124
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125
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Vorberg R, Carreira EM, Müller K. Cover Picture: Aqueous Instability of δ-Fluorobutylpiperidines (ChemMedChem 6/2017). ChemMedChem 2017. [DOI: 10.1002/cmdc.201700149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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