Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron Letters called Asymmetric catalytic cyclopropanation of olefins: bis-oxazoline copper complexes, Author is Lowenthal, Richard E.; Abiko, Atsushi; Masamune, Satoru, which mentions a compound: 132098-59-0, SMILESS is C1(CC2=N[C@@H](C3=CC=CC=C3)CO2)=N[C@@H](C4=CC=CC=C4)CO1, Molecular C19H18N2O2, Computed Properties of C19H18N2O2.
Bis-oxazolines were prepared from di-Et malonate and chiral amino alcs. and converted into their Cu(II) complexes which, upon activation, exhibit high enantioselectivity of up to 99% ee for catalytic cyclopropanation of olefins. Thus, cyclopropanation of styrene with ethyl diazoacetate catalyzed by bis-oxazoline copper complex I activated by phenylhydrazine in THF gave 80% cyclopropanecarboxylates II with 97% trans enantiomeric excess and 77% cis enantiomeric excess.
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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