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Stivala CE, Gu Z, Smith LL, Zakarian A. Studies toward the synthesis of spirolide C: exploration into the formation of the 23-membered all-carbon macrocyclic framework. Org Lett 2012; 14:804-7. [PMID: 22260643 DOI: 10.1021/ol203342e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of two complex subunits en route to spirolide C is described. A key alkyllithium addition to an aldehyde joins the fragments, which are advanced in order to investigate a ring-closing metathesis to form the 23-membered all-carbon macrocyclic framework.
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Affiliation(s)
- Craig E Stivala
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
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Castagnolo D, Contemori L, Maccari G, Avramova SI, Neri A, Sgaragli G, Botta M. From taxuspine x to structurally simplified taxanes with remarkable p-glycoprotein inhibitory activity. ACS Med Chem Lett 2010; 1:416-21. [PMID: 24900226 DOI: 10.1021/ml100118k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 06/28/2010] [Indexed: 01/07/2023] Open
Abstract
Three simplified "non-natural" natural taxanes, related to taxuspine X, were synthetized and assayed as P-glycoprotein (P-gp) inhibitors. One of them (6) proved to be a very efficient P-gp inhibitor with an IC50 = 7.2 × 10(-6) M. In addition, to rationalize biological data, a pharmacophoric model was built through a ligand-based approach. This model represents the first example of a pharmacophore, which describes interactions of taxanes with P-gp.
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Affiliation(s)
- Daniele Castagnolo
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Alcide de Gasperi 2, 53100 Siena, Italy
| | - Lorenzo Contemori
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Alcide de Gasperi 2, 53100 Siena, Italy
| | - Giorgio Maccari
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Alcide de Gasperi 2, 53100 Siena, Italy
| | - Stanislava I. Avramova
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Alcide de Gasperi 2, 53100 Siena, Italy
| | - Annalisa Neri
- Dipartimento di Neuroscienze, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
- Istituto Toscano Tumori, via T. Alderotti 26N, 50139 Firenze, Italy
| | - Gianpietro Sgaragli
- Dipartimento di Neuroscienze, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
- Istituto Toscano Tumori, via T. Alderotti 26N, 50139 Firenze, Italy
| | - Maurizio Botta
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Alcide de Gasperi 2, 53100 Siena, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, BioLife Science Building, Suite 333, 1900 North 12th Street, Philadelphia, Pennsylvania 19122
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Moradov D, Quntar AAAA, Youssef M, Smoum R, Rubinstein A, Srebnik M. Mo(CO)6-Mediated Intramolecular Pauson−Khand Reaction of Substituted Diethyl 3-Allyloxy-1-Propynylphosphonates. J Org Chem 2008; 74:1029-33. [DOI: 10.1021/jo801988k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dorit Moradov
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
| | - Abed Al Aziz Al Quntar
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
| | - Manar Youssef
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
| | - Reem Smoum
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
| | - Abraham Rubinstein
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
| | - Morris Srebnik
- Department of Medicinal Chemistry and Natural Products and Department of Pharmaceutics, School of Pharmacy, Hebrew University in Jerusalem, Jerusalem 91120, Israel, and Department of Material Engineering, Faculty of Engineering, Al Quds University, Abu Dies, Jerusalem, Palestinian Authority
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Zhang M, Dong M, Yang Y, Wu M, Huo C, Shi Q, Gu Y, Cong B. A rare 3,8-seco-taxane from the leaves of Taxus cuspidata. BIOCHEM SYST ECOL 2008. [DOI: 10.1016/j.bse.2008.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Stereoselective synthesis of advanced intermediates en route to Taxuspine U and X: a study of macrocyclization via ring closing metathesis to highly constrained twelve-membered rings. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.11.167] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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