Search Results - "Porco, John A"
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Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis
Published in Chemical reviews (14-09-2016)“…The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple…”
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2
Dearomatization Strategies in the Synthesis of Complex Natural Products
Published in Angewandte Chemie International Edition (26-04-2011)“…Evolution in the field of the total synthesis of natural products has led to exciting developments over the last decade. Numerous chemoselective and…”
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3
Total Syntheses of Secalonic Acids A and D
Published in Angewandte Chemie International Edition (17-03-2014)“…Total syntheses of the dimeric tetrahydroxanthone natural products secalonic acids A and D are described. Key steps involve kinetic resolution of the…”
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4
Structural basis for species-selective targeting of Hsp90 in a pathogenic fungus
Published in Nature communications (24-01-2019)“…New strategies are needed to counter the escalating threat posed by drug-resistant fungi. The molecular chaperone Hsp90 affords a promising target because it…”
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Exploiting the Potential of Meroterpenoid Cyclases to Expand the Chemical Space of Fungal Meroterpenoids
Published in Angewandte Chemie International Edition (21-12-2020)“…Fungal meroterpenoids are a diverse group of hybrid natural products with impressive structural complexity and high potential as drug candidates. In this work,…”
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Unified, Asymmetric Total Synthesis of the Asnovolins and Related Spiromeroterpenoids: A Fragment Coupling Approach
Published in Journal of the American Chemical Society (20-07-2022)“…3,5-Dimethylorsellinic acid (DMOA)-derived spiromeroterpenoids are a unique natural product family with attractive structures, unconventional stereochemistry,…”
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7
RNA G-quadruplexes cause eIF4A-dependent oncogene translation in cancer
Published in Nature (London) (04-09-2014)“…The translational control of oncoprotein expression is implicated in many cancers. Here we report an eIF4A RNA helicase-dependent mechanism of translational…”
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Triple-Dearomative Photocycloaddition: A Strategy to Construct Caged Molecular Frameworks
Published in Journal of the American Chemical Society (15-05-2024)“…An unprecedented caged 2H-benzo-dioxo-pentacycloundecane framework was serendipitously obtained in a single transformation via triple-dearomative…”
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9
Asymmetric, Stereodivergent Synthesis of (−)-Clusianone Utilizing a Biomimetic Cationic Cyclization
Published in Angewandte Chemie International Edition (21-07-2014)“…We report a stereodivergent, asymmetric total synthesis of (−)‐clusianone in six steps from commercial materials. We implement a challenging cationic…”
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Asymmetric Synthesis of Nidulalin A and Nidulaxanthone A: Selective Carbonyl Desaturation Using an Oxoammonium Salt
Published in Journal of the American Chemical Society (21-02-2024)“…Nidulaxanthone A is a dimeric, dihydroxanthone natural product that was isolated in 2020 from Aspergillus sp. Structurally, the compound features an…”
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Polycyclic xanthone natural products: structure, biological activity and chemical synthesis
Published in Natural product reports (01-01-2013)“…Polycyclic xanthone natural products are a family of polyketides which are characterized by highly oxygenated, angular hexacyclic frameworks. In the last…”
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12
BRCA mutational status shapes the stromal microenvironment of pancreatic cancer linking clusterin expression in cancer associated fibroblasts with HSF1 signaling
Published in Nature communications (31-10-2022)“…Tumors initiate by mutations in cancer cells, and progress through interactions of the cancer cells with non-malignant cells of the tumor microenvironment…”
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13
Biomimetic Synthesis of Meroterpenoids by Dearomatization‐Driven Polycyclization
Published in Angewandte Chemie International Edition (04-11-2019)“…A biomimetic route to farnesyl pyrophosphate and dimethyl orsellinic acid (DMOA)‐derived meroterpenoid scaffolds has yet to be reported despite great interest…”
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14
Regiodivergent Photocyclization of Dearomatized Acylphloroglucinols: Asymmetric Syntheses of (−)-Nemorosone and (−)-6-epi-Garcimultiflorone A
Published in Journal of the American Chemical Society (17-07-2019)“…Regiodivergent photocyclization of dearomatized acylphloroglucinol substrates has been developed to produce type A polycyclic polyprenylated acylphloroglucinol…”
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15
How proteins bind macrocycles
Published in Nature chemical biology (01-09-2014)“…Macrocycles have the potential to act on currently undruggable targets, but their discovery thus far has been unsystematic. A physicochemical analysis of all…”
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16
Chemical Synthesis of Complex Molecules Using Nanoparticle Catalysis
Published in ACS catalysis (01-01-2012)“…Nanoparticle catalysis has emerged as an active topic in organic synthesis. Of particular interest is the development of enabling methodologies to efficiently…”
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CRISPR-Mediated Drug-Target Validation Reveals Selective Pharmacological Inhibition of the RNA Helicase, eIF4A
Published in Cell reports (Cambridge) (14-06-2016)“…Targeting translation initiation is an emerging anti-neoplastic strategy that capitalizes on de-regulated upstream MAPK and PI3K-mTOR signaling pathways in…”
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Isolation and Synthesis of Novel Meroterpenoids from Rhodomyrtus tomentosa: Investigation of a Reactive Enetrione Intermediate
Published in Angewandte Chemie International Edition (22-03-2019)“…Rhodomyrtusials A–C, the first examples of triketone‐sesquiterpene meroterpenoids featuring a unique 6/5/5/9/4 fused pentacyclic ring system were isolated from…”
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Rocaglates Induce Gain-of-Function Alterations to eIF4A and eIF4F
Published in Cell reports (Cambridge) (25-02-2020)“…Rocaglates are a diverse family of biologically active molecules that have gained tremendous interest in recent years due to their promising activities in…”
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Evolution of a Strategy for the Unified, Asymmetric Total Syntheses of DMOA-Derived Spiromeroterpenoids
Published in Journal of organic chemistry (06-09-2024)“…DMOA-derived spiromeroterpenoids are a group of natural products with complex structures and varied biological activities. Recently, we reported the first…”
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