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Chaudhury S, Narasimharao Meka P, Banerjee M, Kent CN, Blagg BSJ. Structure-Based Design, Synthesis, and Biological Evaluation of Hsp90β-Selective Inhibitors. Chemistry 2021; 27:14747-14764. [PMID: 34449940 PMCID: PMC8790780 DOI: 10.1002/chem.202102574] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Indexed: 11/06/2022]
Abstract
The 90 kDa heat shock proteins (Hsp90) are molecular chaperones that are responsible for the folding and/or trafficking of ∼400 client proteins, many of which are directly associated with cancer progression. Consequently, inhibition of Hsp90 can exhibit similar activity as combination therapy as multiple signaling nodes can be targeted simultaneously. In fact, seventeen small-molecule inhibitors that bind the Hsp90 N-terminus entered clinical trials for the treatment of cancer, all of which exhibited pan-inhibitory activity against all four Hsp90 isoforms. Unfortunately, most demonstrated undesired effects alongside induction of the pro-survival heat shock response. As a result, isoform-selective inhibitors have been sought to overcome these detriments. Described herein is a structure-based approach to design Hsp90β-selective inhibitors along with preliminary SAR. In the end, compound 5 was shown to manifest ∼370-fold selectivity for Hsp90β versus Hsp90α, and induced the degradation of select Hsp90β-dependent clients. These data support the development of Hsp90β-selective inhibitors as a new paradigm to overcome the detriments associated with pan-inhibition of Hsp90.
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Affiliation(s)
- Subhabrata Chaudhury
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Penchala Narasimharao Meka
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Monimoy Banerjee
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Caitlin N Kent
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
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2
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Sui G, Song X, Zhang B, Wang Y, Liu R, Guo H, Wang J, Chen Q, Yang X, Hao H, Zhou W. Design, synthesis and biological evaluation of novel neuchromenin analogues as potential antifungal agents. Eur J Med Chem 2019; 173:228-239. [PMID: 31009909 DOI: 10.1016/j.ejmech.2019.04.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/04/2019] [Accepted: 04/11/2019] [Indexed: 10/27/2022]
Abstract
In continuation of our program to discover new potential antifungal agents, thirty-two neuchromenin analogues were synthesized and characterized by the spectroscopic analysis. By using the mycelium growth rate method, the target compounds were evaluated systematically for antifungal activities in vitro against six plant pathogenic fungi, and structure-activity relationships (SAR) were derived. Compounds 6b-c, and 6l showed obvious inhibition activity on each of the fungi at 50 μg/mL. For the corresponding fungi, 7 of the compounds showed average inhibition rates of >80% at 50 μg/mL; especially, compounds 6b, 6d-e, and 6i-l displayed more potent antifungal activity against A. solani than that of thiabendazole (a positive control). Moreover, compound 6c also exhibited good activity against C. lunata with EC50 values of 12.7 μg/mL, and the value was much superior to that of thiabendazole (EC50 = 59.7 μg/mL). SAR analysis showed that the presence of conjugated structure, bearing a C=C bond conjugated to the C=O group, obviously decreased the activity; the type and position of the substituted R5 significantly influenced the activity. Furthermore, the significantly bioactive compounds 6b-e, 6g, 6i and 6l showed very low toxicities against HL-7702, BEL-7402 and HCT-8 cells. Resistance development assay indicated that compounds 6b-e and 6l failed to induce the two tested strains of fungi to develop resistance. SEM analysis initially revealed that compound 6d may exert its antifungal effect by damaging fungal cell wall.
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Affiliation(s)
- Guoqing Sui
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Xiaoqing Song
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Bingyu Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Yanhai Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Ruiyuan Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Huihui Guo
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Jingmei Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Qianwen Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Xinjuan Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Hongdong Hao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China.
| | - Wenming Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, China.
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Wan C, Hong Q, Zhang X, Zeng Y, Yang D, Che C, Ding S, Xiao Y, Li JQ, Qin Z. Role of the Ring Methyl Groups in 2',3'-Benzoabscisic Acid Analogues. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4995-5007. [PMID: 30901214 DOI: 10.1021/acs.jafc.8b07068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Five analogues of iso-PhABA (20) developed earlier by our research group were designed and synthesized. The bioassay results show that the number and position of methyl groups along with the substitution of hydrogen atoms of the methyl group have a great influence on the activity. Compared with iso-PhABA, the inhibitory activity of diMe-PhABA (21) on seed germination and rice seedling growth decreased slightly; however, it significantly reduced the capability of inhibiting wheat embryo germination. Both 3'-deMe- iso-PhABA (22) and 2'-deMe-PhABA (23) exhibited weak inhibitory activities, and 11'-methoxy iso-PhABA (24a/24b) was much more efficient than its isomer 24c/24d in all bioassays. These results reveal the preservation of quaternary carbon at the 2' or 3' position is necessary to maintain its ABA-like biological activity, and demethylation at the 3' position has a more significant effect. The selectivity of these compounds to different physiological processes makes them available as selective probes for different ABA receptors.
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Affiliation(s)
| | - Qilin Hong
- Beijing Aerospace Propulsion Institute , Beijing 100076 , China
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Reddy UC, Manheri MK. 1-Hydroxymethyl-7-oxabicyclo[2.2.1]hept-2-ene skeleton in enantiopure form through enzymatic kinetic resolution. Chirality 2019; 31:336-347. [PMID: 30753757 DOI: 10.1002/chir.23060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 11/11/2022]
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5
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Pizzilli A, Zoppi R, Hoyos P, Gómez S, Gatti F, Hernáiz M, Alcántara A. First stereoselective acylation of a primary diol possessing a prochiral quaternary center mediated by lipase TL from Pseudomonas stutzeri. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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The role of Pseudomonas cepacia lipase in the asymmetric synthesis of heterocyclic based compounds. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Mahalingam P, Takrouri K, Chen T, Sahoo R, Papadopoulos E, Chen L, Wagner G, Aktas BH, Halperin JA, Chorev M. Synthesis of rigidified eIF4E/eIF4G inhibitor-1 (4EGI-1) mimetic and their in vitro characterization as inhibitors of protein-protein interaction. J Med Chem 2014; 57:5094-111. [PMID: 24827861 PMCID: PMC4216204 DOI: 10.1021/jm401733v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
The
4EGI-1 is the prototypic inhibitor of eIF4E/eIF4G interaction,
a potent inhibitor of translation initiation in vitro and in vivo
and an efficacious anticancer agent in animal models of human cancers.
We report on the design, synthesis, and in vitro characterization
of a series of rigidified mimetic of this prototypic inhibitor in
which the phenyl in the 2-(4-(3,4-dichlorophenyl)thiazol-2-yl) moiety
was bridged into a tricyclic system. The bridge consisted one of the
following: ethylene, methylene oxide, methylenesulfide, methylenesulfoxide,
and methylenesulfone. Numerous analogues in this series were found
to be markedly more potent than the parent prototypic inhibitor in
the inhibition of eIF4E/eIF4G interaction, thus preventing the eIF4F
complex formation, a rate limiting step in the translation initiation
cascade in eukaryotes, and in inhibition of human cancer cell proliferation.
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Affiliation(s)
- Poornachandran Mahalingam
- Laboratory for Translational Research, Harvard Medical School , One Kendall Square, Cambridge, Massachusetts 02139, United States
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Limberakis C, Li J, Balan G, Griffith DA, Kung DW, Rose C, Vrieze D. Complementary α-alkylation approaches for a sterically hindered spiro[pyrazolopyranpiperidine]ketone. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Bhuniya R, Nanda S. Enantiomeric scaffolding of α-tetralone and related scaffolds by EKR (Enzymatic Kinetic Resolution) and stereoselective ketoreduction with ketoreductases. Org Biomol Chem 2012; 10:536-47. [DOI: 10.1039/c1ob06545a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Shaikh MM, Kruger HG, Bodenstein J, Smith P, du Toit K. Anti-inflammatory activities of selected synthetic homoisoflavanones. Nat Prod Res 2011; 26:1473-82. [PMID: 21950651 DOI: 10.1080/14786419.2011.565004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Four homoisoflavanones of the 3-benzylidene-4-chromanone type, some of which were previously isolated from Caesalpinia pulcherrima, were synthesised to determine their anti-inflammatory activity and cytotoxicity. A range of four different homoisoflavanones (compounds 4a-4d) were synthesised from the corresponding substituted phenols. ¹H- and ¹³C-NMR data together with high-resolution mass spectroscopy data were employed to elucidate the structures. Anti-inflammatory activity was determined in mice with acute croton oil-induced auricular dermatitis. In vitro cytotoxicity was tested against a Chinese hamster ovarian cell line using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide (MTT) assay. Compound 4a exhibited a tendency to inhibit oedema in a dose-dependent manner after 3 and 6 h of treatment. Compounds 4b-4d also inhibited oedema, although a clear dose-response relationship was not observed. Compounds 4a-4c were found to be less cytotoxic than compound 4d. Compound 4b was the least cytotoxic. Compounds 4a-4d exhibited anti-inflammatory activity and varying levels of cytotoxicity.
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Mahapatra T, Jana N, Nanda S. Stereoselective Desymmetrization of 2,2-Bishydroxymethyl-1-tetralones by Iodocyclization, Synthesis of Novel Enantiopure [6.6.5] Tricyclic Framework and Chemoenzymatic Diversity Generation. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Shaikh M, Petzold K, Kruger HG, du Toit K. Synthesis and NMR elucidation of homoisoflavanone analogues. Struct Chem 2010. [DOI: 10.1007/s11224-010-9703-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Guerrab Z, Schweiger S, Daou B, Ahmar M, Cazes B. Lipase-catalyzed kinetic resolution of α-hydroxymethylcycloalkanones with a quaternary carbon center. Chemoenzymatic synthesis of chiral pseudoiridolactones. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.04.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Luo SP, Li ZB, Wang LP, Guo Y, Xia AB, Xu DQ. Chiral amine/chiral acid as an excellent organocatalytic system for the enantioselective tandem oxa-Michael-aldol reaction. Org Biomol Chem 2009; 7:4539-46. [PMID: 19830307 DOI: 10.1039/b910835a] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric tandem oxa-Michael-aldol reaction of salicylic aldehyde derivatives with alpha,beta-unsaturated aldehydes catalyzed by a chiral amine/chiral acid organocatalytic system was investigated. The organocatalytic system of (S)-diphenylpyrrolinol trimethylsilyl ether with chiral shift reagent (S)-Mosher acid presented a synergistic effect in the improvement of reaction performance and offered an efficient steric effect in the transformation. The tandem oxa-Michael-aldol reaction proceeded with high yields (up to 90%) and with excellent ee values (up to 99%) to give the corresponding chromene derivatives. The structure of the chiral ammonium salt formed in situ and the corresponding mechanism were also studied by (1)H NMR.
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Affiliation(s)
- Shu-Ping Luo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, China
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Enantioselective enzymatic desymmetrization of prochiral 1,3-diols and enzymatic resolution of monoprotected 1,3-diols based on α-tetralone and related multifunctional scaffolds. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.10.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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