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Seenadera SD, Long SA, Akee R, Bermudez G, Parsonage G, Strope J, Peer C, Figg WD, Parker KA, Beech DJ, Beutler JA. Biological Effects of Modifications of the Englerin A Glycolate. ACS Med Chem Lett 2022; 13:1472-1476. [PMID: 36105325 PMCID: PMC9465829 DOI: 10.1021/acsmedchemlett.2c00258] [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: 05/27/2022] [Accepted: 08/15/2022] [Indexed: 11/30/2022] Open
Abstract
Modifications at the glycolate moiety of englerin A were made to explore variations at the most sensitive site on the molecule for activity in the NCI 60 screen, wherein englerin A is highly potent and selective for renal cancer cells. Replacement of the glycolate by other functionalities as well as esterification of the glycolate hydroxyl yielded compounds which displayed excellent selectivity and potency compared with the natural product. TRPC4/5 ion channel experiments with five compounds showed delayed or reduced agonism with TRPC5, at much higher concentrations than englerin A. With TRPC4, these compounds all had no effect at 10 μM. The same compounds were not detectable in mouse serum after a single oral dose of 12.5 mg/kg. At 100 mg/kg p.o., no toxicity was observed, and blood levels were barely detectable. Intravenous administration led to toxicity but at substantially lower doses than for englerin A.
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Affiliation(s)
- Sarath
P. D. Seenadera
- Molecular
Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702 United States
| | - Sarah A. Long
- Molecular
Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702 United States
| | - Rhone Akee
- Leidos
Biomedical, FNLCR, Frederick, Maryland 21702 United States
| | - Gabriela Bermudez
- Department
of Chemistry, Stony Brook University, Stony Brook, New York 11790 United States
| | | | - Jonathan Strope
- Genitourinary
Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892 United States
| | - Cody Peer
- Genitourinary
Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892 United States
| | - W. Douglas Figg
- Genitourinary
Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892 United States
| | - Kathlyn A. Parker
- Department
of Chemistry, Stony Brook University, Stony Brook, New York 11790 United States
| | - David J. Beech
- School
of Medicine, University of Leeds, Leeds, LS2 9JT U.K.
| | - John A. Beutler
- Molecular
Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702 United States
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Ali R, Ahmed W, Jayant V, alvi S, Ahmed N, Ahmed A. Metathesis reactions in total‐ and natural product fragments syntheses. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rashid Ali
- Jamia Millia Islamia New Delhi India 110025 Department of Chemistry Jamia Nagar,New Delhi india110025 110025 New Delhi INDIA
| | - Waqar Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Vikrant Jayant
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - shakeel alvi
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Nadeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Azeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
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Wu Z, Suppo JS, Tumova S, Strope J, Bravo F, Moy M, Weinstein ES, Peer CJ, Figg WD, Chain WJ, Echavarren AM, Beech DJ, Beutler JA. Bridgehead Modifications of Englerin A Reduce TRPC4 Activity and Intravenous Toxicity but not Cell Growth Inhibition. ACS Med Chem Lett 2020; 11:1711-1716. [PMID: 32944138 DOI: 10.1021/acsmedchemlett.0c00186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/03/2020] [Indexed: 11/29/2022] Open
Abstract
Modifications at the bridgehead position of englerin A were made to explore the effects of variation at this site on the molecule for biological activity, as judged by the NCI 60 screen, in which englerin A is highly potent and selective for renal cancer cells. Replacement of the isopropyl group by other, larger substituents yielded compounds which displayed excellent selectivity and potency comparable to the natural product. Selected compounds were also evaluated for their effect on the ion channel TRPC4 as well as for intravenous toxicity in mice, and these had lower potency in both assays compared to englerin A.
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Affiliation(s)
- Zhenhua Wu
- Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, Delaware 19716, United States
| | - Jean-Simon Suppo
- Institute of Chemical Research of Catalonia (ICIQ), 43007 Tarragona, Spain
| | - Sarka Tumova
- School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Jonathan Strope
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Fernando Bravo
- Institute of Chemical Research of Catalonia (ICIQ), 43007 Tarragona, Spain
| | - Melody Moy
- Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, Delaware 19716, United States
| | - Ethan S. Weinstein
- Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, Delaware 19716, United States
| | - Cody J. Peer
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - William D. Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - William J. Chain
- Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, Delaware 19716, United States
| | | | - David J. Beech
- School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - John A. Beutler
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
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Plata P, Klimczak U, Zambroń BK. Acyclic Remote 1,5- and 1,4,5-Stereocontrol in the Catalytic Stereoselective Reactions of β-Lactams with Aldehydes: The Effect of the N-Methylimidazole Ligand. J Org Chem 2018; 83:14527-14552. [PMID: 30412405 DOI: 10.1021/acs.joc.8b02333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The application of the N-methylimidazole ( N-MI) ligand in the Pd(0)/InI-promoted allylations of aldehydes with β-lactam-derived organoindiums enables the reaction of azetidin-2-ones with diversely substituted allyl moieties, inert under previously reported conditions. As a result, allylations and crotylations of a variety of aromatic and aliphatic aldehydes with previously unavailable chiral ε-amido-allylindiums bearing α-, β-, or γ-substituted allyl fragments were developed. The reactions occur under thermodynamic control with a highly efficient remote 1,5- or 1,4,5-stereocontrol to afford a diversity of (3 Z)-2,5- anti-2,6- syn- or (3 Z)-2,5- syn-2,6- anti-substituted enediols, aminoalcohols, and homoallylic alcohols in moderate to high yields and with an excellent diastereoselectivity. A detailed study on the effect of the β-lactam and aldehyde structures and chirality on the yield and stereochemistry in the products was carried out.
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Affiliation(s)
- Paulina Plata
- Institute of Organic Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
| | - Urszula Klimczak
- Institute of Organic Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
| | - Bartosz K Zambroń
- Institute of Organic Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
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