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Prabhat Arya, Reni Joseph, Zhonghong Gan, Bojana Rakic 

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Presentation on theme: "Prabhat Arya, Reni Joseph, Zhonghong Gan, Bojana Rakic "— Presentation transcript:

1 Exploring New Chemical Space by Stereocontrolled Diversity-Oriented Synthesis 
Prabhat Arya, Reni Joseph, Zhonghong Gan, Bojana Rakic  Chemistry & Biology  Volume 12, Issue 2, Pages (February 2005) DOI: /j.chembiol Copyright © 2005 Elsevier Ltd Terms and Conditions

2 Figure 1 Kapoor and Coworkers’ Solid-Phase Synthesis of HR22C16 Analogs that Utilized a Stereocontrolled Pictet-Spengler Approach Taken from the article by Hotha et al. [30]. (A) Schematic representation of the assay. Vertebrate cells (BS-C-1) in multiwell plates are stained for the actin cytoskeleton and are imaged from below by using a 4× objective. (B) The effect of a compound that causes no morphological change. (C and D) (C) The effect of HR22C16 and (D) the configuration of microtubules in a (left) control cell and a (right) HR22C16-treated cell. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

3 Figure 2 Application of a Domino Reaction Combined with Enantioselective Hydrogenation to Obtain Emetine Analogs by Tietze and Coworkers See [31]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

4 Figure 3 Waldmann and Coworkers’ Solid-Phase Synthesis of Dysidiolide-Derived Protein Phosphatase Inhibitors See [32]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

5 Figure 4 Takahashi and Coworkers’ Solid-Phase Approach to Vitamin D3
See [33, 34]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

6 Figure 5 Myers and Coworkers’ Enantioselective Solid-Phase Synthesis of Saframycin Analogs See [36, 37]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

7 Figure 6 Bioactive Spiroketal Moieties Embedded in Spongistatin and Okadaic Acid Waldmann and coworkers’ [40] enantioselective, aldol-based solid-phase synthesis of the spiroketal library. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

8 Figure 7 Schreiber and Coworkers’ DOS Approach to Obtain Skeletally Diverse Natural Product-like Compounds See [43]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

9 Figure 8 Schreiber and Coworkers’ Approach to 2H-Pyran Derivatives
(A) An application of enantioselective Lewis acid catalysis on solid phase to obtain a library of substituted 2H-pyrans. (B) Small-molecule microarray of compounds obtained from a substituted 2H-pyran library (taken from [46]). See [45, 46]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

10 Figure 9 Schreiber and Coworkers’ Approach
(A) A library of small molecules containing atrop-diastereodefined, medium-sized rings. (B) (a and b) Plant and (c and d) Zebrafish assay: (a) 7-day-old Arabidopsis seedlings germinated on agar containing 1% DMSO and a small-molecule library member (10 μm). (b) 7-day-old control experiment. (c) Synchronized Zebrafish embryos upon treatment with a small-molecule library member (100 nM); these embryos are slow to develop, and they exhibit lower than normal pigmentation, weak hearts, abnormal brains, and misshapen jaws. (d) Synchronized embryos upon treatment with the same library member (5 μm); Zebrafish look indistinguishable from untreated controls (taken from [48]). See [47, 48]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

11 Figure 10 Schreiber and Coworkers’ Boronic Ester Annulation/Diels-Alder Approach See [49, 50]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

12 Figure 11 Schreiber and Coworkers’ DOS Approach to Obtain Polycyclic Compounds from Glycals See [51]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

13 Figure 12 An Asymmetric Cycloaddition Approach by Schreiber and Coworkers (A) A cycloaddition approach with triene to obtain polycyclic compounds. (B) An approach to immobilize small molecules having an acidic proton on an aminopropyl glass surface by Schreiber and coworkers. (C) Few library members identified as Calmodulin protein binding agents. See [55, 57]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

14 Figure 13 An Application of Immobilized Dihydroisoquinoline to Obtain Skeletally Different Compounds See [60]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

15 Figure 14 Arya and Coworkers’ Stereocontrolled DOS to Obtain Tetrahydroquinoline-Derived, Natural Product-like, Polycyclic Compounds See [60]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

16 Figure 15 Ring-Closing Metathesis Approach by Arya and Coworkers
(A) RCM approach to obtain natural product-like, polycyclic compounds. (B) Regio- and stereoselective hetero-Michael approach to tetrahydroquinoline-based, polycyclic compounds. (C) Stereocontrolled solid-phase synthesis of tetrahydroquinoline-based, natural product-like, polycyclic compounds. See [60]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

17 Figure 16 Stereocontrolled Diversity-Oriented Reactions
(A) Tetrahydroquinoline-derived, polycyclic compounds having a functionalized 8-membered ring. (B) Ring conformation-controlled, asymmetric conjugate addition. See [61]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions

18 Figure 17 Natural Product-like Compounds with a Bridged, Medium-Sized Ring (A) Tetrahydroquinoline-based polycyclics having a functionalized, bridged, 10-membered ring. (B) Solid-phase synthesis of tetrahydroquinoline-based, polycyclic compounds with a bridged, 10-membered ring. See [66]. Chemistry & Biology  , DOI: ( /j.chembiol ) Copyright © 2005 Elsevier Ltd Terms and Conditions


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