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Zhu Y, Liu S, Zigmond J, Kaltenbronn KM, Blumer KJ, Moeller KD. A Building Block Approach for the Total Synthesis of YM-385781. European J Org Chem 2023; 26:e202300365. [PMID: 38188369 PMCID: PMC10766104 DOI: 10.1002/ejoc.202300365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Indexed: 01/09/2024]
Abstract
YM-254890 and FR900359 are potent and selective inhibitors of the Gq/11-signaling pathway. As such, they have been attractive targets for both synthesis and biological studies. Yet in spite of this effort, a versatile synthetic approach to the molecules that allows for the rapid construction of a variety of non-natural and labelled analogs and an increase in the amount of those analogs available remains elusive. We report here a convergent building block approach to the molecules that can solve this challenge.
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Affiliation(s)
- Yu Zhu
- Department of Chemistry, Washington University, St. Louis, MO 63130
| | - Siyue Liu
- Department of Chemistry, Washington University, St. Louis, MO 63130
| | - Johnny Zigmond
- Department of Chemistry, Washington University, St. Louis, MO 63130
| | - Kevin M Kaltenbronn
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO
| | - Kendall J Blumer
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO
| | - Kevin D Moeller
- Department of Chemistry, Washington University, St. Louis, MO 63130
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Pistorius D, Buntin K, Richard E, Rust M, Bouquet C, Wollbrett S, Weber E, Dietschin D, Bruccoleri R, Oakeley E, Petersen F. Valhidepsin Lipopeptides from Chromobacterium vaccinii: Structures, Biosynthesis, and Coregulation with FR900359 Production. JOURNAL OF NATURAL PRODUCTS 2023; 86:246-255. [PMID: 36745695 DOI: 10.1021/acs.jnatprod.2c00825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Microbial secondary metabolites continue to provide a valuable source of both chemical matter and inspiration for drug discovery in a broad range of therapeutic areas. Beyond this, the corresponding microorganisms represent a sustainable modality for biotechnological production of structurally complex molecules at the quantities required for drug development or even commercial manufacturing. Chromobacterium vaccinii, which has recently been reported as a producer of the pharmacologically highly important Gq inhibitor FR900359 (FR), represents such an example. The characterization of an orphan biosynthetic gene cluster (BGC) located directly downstream of the frs BCG led to the discovery of eight new lipopeptides, valhidepsins A-H (1-8), produced by C. vaccinii. Their chemical structures were elucidated through analysis of 1D and 2D NMR data and high-resolution MS/MS fragmentation methods. The valhidepsins did not display significant antibiotic nor cytotoxic activities but showed surfactant properties. The cluster-compound correlation was demonstrated by generation of a knockout mutant, which abolished production of valhidepsins. This knockout mutant yielded a significantly increased isolated yield of FR.
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Affiliation(s)
- Dominik Pistorius
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Kathrin Buntin
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Etienne Richard
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Michael Rust
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Caroline Bouquet
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Séverine Wollbrett
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Eric Weber
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Daniele Dietschin
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | | | - Edward Oakeley
- Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
| | - Frank Petersen
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Novartis Campus, 4056 Basel, Switzerland
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Deng JJ, Liu L, Ge Y, Song Z, Huang J, Fan G, Xiong XF. Synthesis and evaluation of imidazo[1,2-a]pyrazine derivatives as small molecule Gαq/11 inhibitors against uveal melanoma. Eur J Med Chem 2022; 239:114520. [PMID: 35716516 DOI: 10.1016/j.ejmech.2022.114520] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 11/17/2022]
Abstract
Uveal melanoma (UM) is an aggressive malignancy with high mortality in adults and lacks effective systemic therapies. Activating gene mutations related to the Gαq/11 signaling pathway are prevalent in UM, and Gαq/11 inhibitors have shown anti-UM activity in vitro and in vivo. In this study, we designed and synthesized a series of imidazo[1,2-a]pyrazine derivatives as Gαq/11 inhibitors, and discovered GQ352 with the selective antiproliferative activity against UM cells. Importantly, GQ352 directly binds to the Gαq and inhibits the dissociation of Gαβγ heterotrimers with the IC50 value of 8.9 μM. GQ352 inhibits UM tumorigenesis by suppressing Gαq/11 downstream ERK phosphorylation and YAP dephosphorylation, as shown in Western blot analysis. In addition, GQ352 displayed reasonable physiochemical properties and human liver microsome stability, indicating the potential application in UM treatment.
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Affiliation(s)
- Jun-Jie Deng
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China
| | - Lu Liu
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China
| | - Yang Ge
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China
| | - Zhendong Song
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China
| | - Jie Huang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Guangjin Fan
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China
| | - Xiao-Feng Xiong
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratory for Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, Guangdong, PR China.
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