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Showing 1 to 4 of 4 for “"Orthoester"”.
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Insecticidal Natural Products From Sri Lankan Plants
… the previously reported daphnane diterpenoid orthoester skeleton, and differ only in the orthoester alkyl side chain. Two of them 24 and 27 are novel. Insecticidal activity has not been recorded previously for extracts of <i>Excoecaria</i> species, nor for the daphnane orthoesters.
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1,1-enediamines and β-substituted enamines in heterocyclic synthesis
… propenamides, were made by using two different orthoesters, various secondary and primary amines and cyanoacetamide. Their structures, mechanism of formation and geometry are discussed. A synthetic route to various unsymmetrically substituted pyridines was examined. Two substituted pyridinones …
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Aufklärung der Funktion von zwei rRNA-Methyltransferasen und Untersuchungen zur Eurekanat-Biosynthese in Streptomyces viridochromogenes Tü57
Avilamycine sind Orthosomycin-Antibiotika und werden von Streptomyces viridochromogenes Tü57 gebildet. Sie bestehen aus einem terminalen Dichloro-isoeverninsäure-Rest, der esterglykosidisch mit einer Heptasaccharidkette verknüpft ist, die aus zwei Molekülen D-Olivose, 2-Desoxy-D-Evalose, …