A New Polyketide Antibiotic from the Marine Bacterium Streptomyces sp. PGC 32 was written by Ahmad, Shabir;Nazir, Mamona;Tousif, Muhammad Imran;Saleem, Muhammad;Mustafa, Rizwana;Khatoon, Tasneem. And the article was included in Chemistry of Natural Compounds in 2019.Formula: C9H12O3 The following contents are mentioned in the article:
A new aromatic polyketide compound, arabomycin (I), along with 3 known metabolites, was isolated from the culture broth of the marine bacterium Streptomyces sp. PGC 32. The structure of I was established through 1D and 2D NMR analyses and high-resolution mass spectrometry, and the known compounds were elucidated on the basis of 1H and 13C NMR information in comparison with literature values. I displayed antibacterial action against the Gram-pos. bacteria Bacillus subtilis and Staphylococcus aureus, and Gram-neg. bacteria Escherichia coli and Enterobacter sp. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Formula: C9H12O3).
4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C9H12O3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem