Search Results - "Timm, Christoph"

Synthesis of 3-alkyl pyridinium alkaloids from the arctic sponge Haliclona viscosa by Timm, Christoph, Mordhorst, Thorsten, Köck, Matthias

“…3-Alkyl pyridinium alkaloids (3-APAs) are common secondary metabolites in marine sponges of the order Haplosclerida. In recent years, our laboratory has…”
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Antimicrobial and Antimycobacterial Activity of Cyclostellettamine Alkaloids from Sponge Pachychalina sp by De Oliveira, Jaine H. H. L., Seleghim, Mirna H. R., Timm, Christoph, Grube, Achim, Köck, Matthias, Nascimento, Gislene G.F., Martins, Ana Claudia T., Silva, Elissa G. O., De Souza, Ana Olívia, Minarini, Paulo R. R., Galetti, Fabio C. S., Silva, Célio L., Hajdu, Eduardo, Berlinck, Roberto G. S.

“…Cyclostellettamines A – F (1 – 6) isolated from the sponge Pachychalina sp. and cyclostellettamines G - I, K and L (7 – 11) obtained by synthesis were…”
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Viscosalines B 1,2 and E 1,2 : Challenging New 3‐Alkyl Pyridinium Alkaloids from the Marine Sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Grube, Achim, Volk, Christian A., Köck, Matthias

“…Four new 3‐alkyl pyridinium alkaloids, the viscosalines B 1 ( 1 a ), B 2 ( 1 b ), E 1 ( 2 a ), and E 2 ( 2 b ), were isolated from the Arctic sponge Haliclona…”
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Viscosalines B1,2 and E1,2: Challenging New 3-Alkyl Pyridinium Alkaloids from the Marine Sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Grube, Achim, Volk, Christian A., Köck, Matthias

“…Four new 3‐alkyl pyridinium alkaloids, the viscosalines B1 (1 a), B2 (1 b), E1 (2 a), and E2 (2 b), were isolated from the Arctic sponge Haliclona viscosa. The…”
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Haliclocyclin C, a New Monomeric 3-Alkyl Pyridinium Alkaloid from the Arctic Marine Sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Köck, Matthias

“…For the first time, the macrocyclic monomeric 3-alkyl pyridinium alkaloid with an alkyl chain of 13 methylene groups, haliclocyclin C (1), could be identified…”
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Arctic sponge Haliclona viscosa as a source of a wide array of 3-alkyl pyridine alkaloids by Köck, Matthias, Muñoz, Julie, Cychon, Christine, Timm, Christoph, Schmidt, Gesine

“…The Arctic sponge Haliclona viscosa has proven to be a promising source for 3-alkyl pyridinium and 3-alkyl tetrahydropyridine alkaloids (3-APAs). H. viscosa…”
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ViscosalinesB1,2 and E1,2: Challenging New 3-Alkyl Pyridinium Alkaloids from the Marine Sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Grube, Achim, Volk, Christian A, Kock, Matthias

“…Four new 3-alkyl pyridinium alkaloids, the viscosalinesB1 (1a), B2 (1b), E1 (2a), and E2 (2b), were isolated from the Arctic sponge Haliclona viscosa. The…”
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ViscosalinesB sub(1,2) and E sub(1,2): Challenging New 3-Alkyl Pyridinium Alkaloids from the Marine Sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Grube, Achim, Volk, Christian A, Kock, Matthias

“…Four new 3-alkyl pyridinium alkaloids, the viscosalinesB sub(1) (1a), B sub(2) (1b), E sub(1) (2a), and E sub(2) (2b), were isolated from the Arctic sponge…”
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The first cyclic monomeric 3-alkylpyridinium alkaloid from natural sources: identification, synthesis, and biological activity by Timm, Christoph, Volk, Christian, Sasse, Florenz, Köck, Matthias

“…3-Alkylpyridine alkaloids are very common secondary metabolites from marine sponges of the order Haplosclerida. Here, we report on the identification and…”
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Haliclocyclin C, a New Monomeric 3-Alkyl Pyridinium Alkaloid from the Arctic Marine Sponge Haliclona viscosa by Schmidt, G., Timm, C., Köck, M.

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Viscosalines B(1,2) and E(1,2): challenging new 3-alkyl pyridinium alkaloids from the marine sponge Haliclona viscosa by Schmidt, Gesine, Timm, Christoph, Grube, Achim, Volk, Christian A, Köck, Matthias

“…Four new 3-alkyl pyridinium alkaloids, the viscosalines B(1) (1 a), B(2) (1 b), E(1) (2 a), and E(2) (2 b), were isolated from the Arctic sponge Haliclona…”
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Antimicrobial and Antimycobacterial Activity of Cyclostellettamine Alkaloids from Sponge Pachychalina sp by de Oliveira, Jaine H. H. L., Seleghim, Mirna H. R., Timm, Christoph, Grube, Achim, Köck, Matthias, Nascimento, Gislene G.F., Martins, Ana Claudia T., Silva, Elissa G. O., de Souza, Ana Olívia, Minarini, Paulo R. R., Galetti, Fabio C. S., Silva, Célio L., Hajdu, Eduardo, Berlinck, Roberto G. S.

“…Cyclostellettamines A – F ( 1 – 6 ) isolated from the sponge Pachychalina sp. and cyclostellettamines G - I, K and L ( 7 – 11 ) obtained by synthesis were…”
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Synthesis and Mass Spectrometric Analysis of CyclostellettaminesH, I, K and L by Grube, Achim, Timm, Christoph, Köck, Matthias

“…Very recently the new cyclostellettamines H, I, K and L were identified from a Brazilian sponge of the genus Pachychalina. They were isolated together with the…”
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Simulation of photosynthetic plasticity in response to highly fluctuating light: an empirical model integrating dynamic photosynthetic induction and capacity by Stegemann, J, Timm, H.C, Kuppers, M

“…An empirical model was developed to simulate photosynthetic responses of leaves to highly fluctuating light, with a special focus on the functional role of…”
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