The essential oils extracted from the seeds of seven spices, Anethum graveolens, Carum capticum, Coriandrum sativum, Cuminum cyminum, Foeniculum vulgare, Pimpinella anisum and Seseli indicum have been studied for antibacterial activity against eight pathogenic bacteria, causing infections in the human body. It has been found that the oil of C. capticum is very effective against all tested bacteria. The oil of C. cyminum and A. graveolens also gave similar results. These oils are equally or more effective when compared with standard antibiotics, at a very low concentration.
A simple and highly efficient synthetic approach to enantiopure 2-alkyl substituted tetrahydroquinoline 1 skeleton from aldehydes as starting materials and its application to the total synthesis of (+)-angustureine 2 is described.
b-Carboline, ap rivileged scaffold in the alkaloid family,h as ab road spectrum of medicinal properties and is found in severalc ommercial drugs, such as tadalafil, cipargamin, anda becarnil. Owing to the immense pharmacological importance of b-carboline derivatives, their synthesis has been one of the frontier areas of research in recent years. In this context,1 (3)-formyl-9H-b-carbolines are promising "aldo-X" bifunctional building blocks (AXB3s) that offer alternate avenues for the diversity-oriented synthesis of b-carboline derivatives. This Focus Review is an assimilation of recent literature (2011)(2012)(2013)(2014)(2015)(2016)(2017) pertaining to the synthesis and applicationso f1 (3)-formyl-b-carbolines for the construction of b-carboline-tethered and -fused moleculara rchitectures. In addition, the medicinal potential of b-carboline derivatives has been highlighted.
A short and highly efficient enantioselective synthetic approach to (+)-serinolamide A 1 from racemic butadiene monoepoxide as a starting material is described.
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