Synthesis of (−)-julocrotine and a diversity oriented Ugi-approach to analogues and probes

• Ricardo A. W. Neves Filho,
• Bernhard Westermann and
• Ludger A. Wessjohann

Beilstein J. Org. Chem. 2011, 7, 1504–1507, doi:10.3762/bjoc.7.175

• Ricardo A. W. Neves Filho Bernhard Westermann Ludger A. Wessjohann Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Germany Martin-Luther-University Halle-Wittenberg, Institute of Organic Chemistry, Kurt-Mothes-Str. 2, 06120 Halle, Germany

Sequential Au(I)-catalyzed reaction of water with o-acetylenyl-substituted phenyldiazoacetates

• Lei Zhou,
• Yizhou Liu,
• Yan Zhang and
• Jianbo Wang

Beilstein J. Org. Chem. 2011, 7, 631–637, doi:10.3762/bjoc.7.74

• Lei Zhou Yizhou Liu Yan Zhang Jianbo Wang Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China 10.3762/bjoc.7.74 Abstract The gold(I

Oxidative allylic rearrangement of cycloalkenols: Formal total synthesis of enantiomerically pure trisporic acid B

• Silke Dubberke,
• Muhammad Abbas and
• Bernhard Westermann

Beilstein J. Org. Chem. 2011, 7, 421–425, doi:10.3762/bjoc.7.54

• Silke Dubberke Muhammad Abbas Bernhard Westermann Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany Chair of Advanced Proteomics and Cytomics Research, Faculty of Science, Department of Zoology, King Saud University, P.O. Box

A two step synthesis of a key unit B precursor of cryptophycins by asymmetric hydrogenation

• Benedikt Sammet,
• Mathilde Brax and
• Norbert Sewald

Beilstein J. Org. Chem. 2011, 7, 243–245, doi:10.3762/bjoc.7.32

• Benedikt Sammet Mathilde Brax Norbert Sewald Bielefeld University, Department of Chemistry, Organic and Bioorganic Chemistry, Universitätsstraße 25, 33615 Bielefeld, Germany 10.3762/bjoc.7.32 Abstract A novel highly enantioselective two step access to a unit B precursor of cryptophycins in good

Michael-type addition of azoles of broad-scale acidity to methyl acrylate

• Sławomir Boncel,
• Kinga Saletra,
• Barbara Hefczyc and
• Krzysztof Z. Walczak

Beilstein J. Org. Chem. 2011, 7, 173–178, doi:10.3762/bjoc.7.24

• Slawomir Boncel Kinga Saletra Barbara Hefczyc Krzysztof Z. Walczak Silesian University of Technology, Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Krzywoustego 4, 44-100 Gliwice, Poland, Tel.: +48 32 237 1792, Fax: +48 32 237 2094 Silesian University of Technology

Organo-fluorine chemistry II

• David O'Hagan

Beilstein J. Org. Chem. 2010, 6, No. 36, doi:10.3762/bjoc.6.36

• the physical properties of molecules involved in programmes ranging from bioorganic chemistry to performance materials. Consequently fluorinated organics are of major commercial significance to the pharmaceuticals, agrochemicals, materials and polymer industries with the fluorine fine chemicals

2-Phenyl- tetrahydropyrimidine- 4(1H)-ones – cyclic benzaldehyde aminals as precursors for functionalised β²-amino acids

• Markus Nahrwold,
• Arvydas Stončius,
• Anna Penner,
• Beate Neumann,
• Hans-Georg Stammler and
• Norbert Sewald

Beilstein J. Org. Chem. 2009, 5, No. 43, doi:10.3762/bjoc.5.43

• Markus Nahrwold Arvydas Stoncius Anna Penner Beate Neumann Hans-Georg Stammler Norbert Sewald Bielefeld University, Department of Chemistry, Organic and Bioorganic Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany Bielefeld University, Department of Chemistry, Inorganic Chemistry

Facile synthesis of two diastereomeric indolizidines corresponding to the postulated structure of alkaloid 5,9E- 259B from a Bufonid toad (Melanophryniscus)

• Angela Nelson,
• H. Martin Garraffo,
• Thomas F. Spande,
• John W. Daly and
• Paul J. Stevenson

Beilstein J. Org. Chem. 2008, 4, No. 6, doi:10.1186/1860-5397-4-6

• Angela Nelson H. Martin Garraffo Thomas F. Spande John W. Daly Paul J. Stevenson School of Chemistry and Chemical Engineering, Queens University, Belfast, BT9 5AG, Northern Ireland Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National

Flexible synthesis of poison- frog alkaloids of the 5,8-disubstituted indolizidine- class. II: Synthesis of (-)-209B, (-)-231C, (-)-233D, (-)-235B", (-)-221I, and an epimer of 193E and pharmacological effects at neuronal nicotinic acetylcholine receptors

• Soushi Kobayashi,
• Naoki Toyooka,
• Dejun Zhou,
• Hiroshi Tsuneki,
• Tsutomu Wada,
• Toshiyasu Sasaoka,
• Hideki Sakai,
• Hideo Nemoto,
• H. Martin Garraffo,
• Thomas F. Spande and
• John W. Daly

Beilstein J. Org. Chem. 2007, 3, No. 30, doi:10.1186/1860-5397-3-30

• Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, DHHS, Bethesda, MD 20892, USA 10.1186/1860-5397-3-30 Abstract Background The 5,8-disubstituted indolizidines constitute the largest class of poison-frog alkaloids. Some alkaloids have been

Flexible synthetic routes to poison- frog alkaloids of the 5,8-disubstituted indolizidine- class I: synthesis of common lactam chiral building blocks and application to the synthesis of (-)-203A, (-)-205A, and (-)-219F

• Naoki Toyooka,
• Dejun Zhou,
• Hideo Nemoto,
• H. Martin Garraffo,
• Thomas F. Spande and
• John W. Daly

Beilstein J. Org. Chem. 2007, 3, No. 29, doi:10.1186/1860-5397-3-29

• Naoki Toyooka Dejun Zhou Hideo Nemoto H. Martin Garraffo Thomas F. Spande John W. Daly Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani 2630, Toyama, 930-0194, Japan Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney