Search Results - "Sundberg, Richard J."

Synthesis and oxidative fragmentation of catharanthine analogs. Comparison to the fragmentation — Coupling of catharanthine and vindoline by Sundberg, Richard J, Hong, Jian, Smith, Stanton Q, Sabat, Michal, Tabakovic, Ibro

“…Two new analogs of catharanthine have been synthesized in racemic form. They differ from catharanthine in the fusion of the indole ring to the non-aromatic…”
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Synthesis of analogs of Iboga alkaloids. Investigation of electrophilic, palladium-catalyzed and radical cyclizations for preparation of 5,6-homoiboga derivatives by Sundberg, Richard J, Cherney, Robert J

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Stereodivergent routes from tyrosine to the 7-( R) and 7-( S) diastereomers of the 7-hydroxy-2,3,7,7a-tetrahydroindole ring found in gliotoxin by Henninger, Todd C, Sabat, Michal, Sundberg, Richard J

“…Two routes from the oxidative cyclization product 1 derived from tyrosine to methyl 7-( tert-butyldimethylsiloxy)-…”
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Synthesis of 8-Methoxy-1-methyl-1H-benzo[d e][1,6]naphthyridin-9-ol (Isoaaptamine) and Analogues by Walz, Andrew J, Sundberg, Richard J

“…8-Methoxy-1-methyl-1H-benzo[de][1,6]naphthyridin-9-ol, isoaaptamine, a PKC inhibitor isolated from sponge was synthesized. The synthesis parallels a synthesis…”
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The IBOGA alkaloids and their role as precursors of anti-neoplastic bisindole catharanthus alkaloids by Sundberg, Richard J, Smith, Stanton Q

“…Iboga alkaloids are found in plants of the family Apocynaceae, which falls within the order Gentianales. The iboga alkaloids are examples of the broad class of…”
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Analogs of the iboga alkaloids. Synthesis and reactions of (.+-.)-15-oxo-20-deethylcoronaridine derivatives by Sundberg, Richard J, Amat, Mercedes, Fernando, Avanthi M

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Cyclization of 2-[N-(methylsulfonyl)anilino]acetaldehyde diethyl acetals to indoles. Evidence for stereoelectronic effects in intramolecular electrophilic aromatic substitution by Sundberg, Richard J, Laurino, Joseph P

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Borohydride and cyanoborohydride reduction of thioimonium salts. A convenient route for transformation of amides to amines by Sundberg, Richard J, Walters, Claudia Powers, Bloom, Jonathan D

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Nitrogen-bound and carbon-bound imidazole complexes of ruthenium ammines by Sundberg, Richard J, Bryan, Robert F, Taylor, Ivan F, Taube, Henry

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Synthesis and intramolecular cycloaddition reactions of some 3-substituted-6-azidohexa-2,4-dienoate esters by Sundberg, Richard J, Pearce, Brad C

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Reactivity of aryl nitrenes. Competition between carbazole formation and internal bond reorganization in biphenylnitrenes by Sundberg, Richard J, Heintzelman, Richard W

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Potential Photoaffinity Labels for Tubulin. Synthesis and Evaluation of Diazocyclohexadienone and Azide Analogs of Colchicine, Combretastatin, and 3,4,5-Trimethoxybiphenyl by Olszewski, John D, Marshalla, Mary, Sabat, Michal, Sundberg, Richard J

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Rearrangements and ring expansions during the deoxygenation of .beta.,.beta.-disubstituted o-nitrostyrenes by Sundberg, Richard J, Yamazaki, Toshio

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Photocyclization of 2-(N-chloroacetylpiperidylalkyl)indoles. Novel case of stereoisomerism dependent on sterically restrained conformations by Sundberg, Richard J, Smith, Francis X

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Mechanism of photolytic conversion of 2-azidobiphenyl to carbazole by Sundberg, Richard J, Gillespie, David W, DeGraff, Benjamin A

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Advanced organic chemistry: Frank A. Carey and Richard J. Sundberg by Carey, Francis A, Sundberg, Richard J

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Interactions of histidine and other imidazole derivatives with transition metal ions in chemical and biological systems by Sundberg, Richard J, Martin, R. Bruce

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Nucleophilic aromatic substitution during deoxygenation. Deoxygenation of nitrosobenzene by triethyl phosphite in alcohols by Sundberg, Richard J, Smith, Richard Holladay

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Bis-Cationic Heteroaromatics as Macrofilaricides:  Synthesis of Bis-Amidine and Bis-Guanylhydrazone Derivatives of Substituted Imidazo[1,2-a]pyridines by Sundberg, Richard J, Biswas, Sujay, Kumar Murthi, Krishna, Rowe, Donna, McCall, John W, Dzimianski, Michael T

“…A series of guanylhydrazone, amidine, and hydrazone derivatives of 2-phenylimidazo[1,2-a]pyridine have been prepared and evaluated for macrofilarial activity…”
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Chloroacetamide photocyclization of indole derivatives. Synthesis, stereochemistry, and crystal structure of 3,7-methano-3-azacycloundecino[5,4-b]indole (deethylquebrachamine) derivatives by Sundberg, Richard J, Luis, Javier G, Parton, Richard L, Schreiber, Stuart, Srinivasan, P. C, Lamb, Patrick, Forcier, Paul, Bryan, Robert F

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