KB343, a Cyclic Tris-guanidine Alkaloid from Palauan Zoantharian Epizoanthus illoricatus
| Autor: | Ken Matsumura, James Davis Reimer, Tohru Taniguchi, Ryuichi Sakai, Masaki J. Fujita, Shuntaro Noguchi |
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| Rok vydání: | 2018 |
| Předmět: |
Tris
Molecular Structure 010405 organic chemistry Chemistry Stereochemistry Alkaloid Organic Chemistry Absolute configuration 010402 general chemistry Ring (chemistry) Guanidines 01 natural sciences Biochemistry 0104 chemical sciences Epizoanthus illoricatus chemistry.chemical_compound Alkaloids Molecule Density functional theory Physical and Theoretical Chemistry Guanidine |
| Zdroj: | Organic Letters. 20:3039-3043 |
| ISSN: | 1523-7052 1523-7060 |
| Popis: | A new tris-guanidine alkaloid, KB343 (1), was isolated from the aqueous extract of a Palauan zoantharian, Epizoanthus illoricatus. The structure of 1 was determined on the basis of spectral analyses of 1 and its derivatives. The absolute configuration for 1 was determined upon comparison of the CD spectrum of 1 to those obtained from density functional theory calculations. The structure of 1 is highly unusual, as three guanidine groups are present in one ring system. |
| Databáze: | OpenAIRE |
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