Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 537-42-8, Name is Pterostilbene, molecular formula is C16H16O3. In an article, author is Salahi, Saleh,once mentioned of 537-42-8, Name: Pterostilbene.
An Efficient Ugi-Azide Four-Component Approach for the Preparation of Novel 1-(1H-tetrazol-5-yl)-10-chloro-1,2,3,4-tetrahydropyrazino[1,2-a] Indoles
The synthesis of novel 1-(1H-tetrazol-5-yl)-10-chloro-1,2,3,4-tetrahydropyrazino[1,2-a] indole derivatives starting from the initially prepared 1-(2-bromoethyl)-3-chloro-1H-indole-2-carbaldehyde is described. A variety of likely biologically relevant pyrazino[1,2-a] indole-based 1,5-disubstituted tetrazoles was obtained in moderate to high yields via an Ugi-azide reaction. These reactions presumably proceed by the imine formation, intramolecular cyclization to iminium ion, and nucleophilic addition tandem reactions, respectively.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from?Bacillus thuringiensis?and?Bacillus velezensis?and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles