One Pot Multicomponent Synthesis, Biological and DNA Interactions of Cyclohepta[B]Indole Derivatives

Prakash B; Amuthavalli A; Edison D; Sivaramkumar MS; Kirubavathy SJ; Velmurugan R

Abstract

One Pot Multicomponent Synthesis, Biological and DNA Interactions of Cyclohepta[B]Indole Derivatives

Author(s): Prakash B, Amuthavalli A, Edison D, Sivaramkumar MS, Kirubavathy SJ, Velmurugan R

A chronological one-pot, atom economical multicomponent reaction yielding biologically capable cyclohepta[b]indole derivatives (6a-d, 7a-d) through a tandem Knoevenagel condensation followed by Michael addition. The reaction takes place under the organocatalyst L-proline. All the compounds were characterized by spectral and elemental analysis. The compounds were tested for their antimicrobial and DNA binding/cleavage studies. Antimicrobial results indicated that all the compounds have been significantly inhibit the growth of tested microorganisms. Especially compounds with chloro group exhibit potent activity. DNA cleavage of the compounds was study by agarose gel electrophoresis method with pUC19 DNA and found that most of the compounds have significant ability to cleave the DNA. Furthermore, the DNA binding property of the potent derivatives (6c, 7c) was studied by absorption spectra, the results showed that these compounds binds to calf thymus DNA (CT-DNA) in an intercalative mode and its intrinsic binding constants Kb is 3.74 × 10⁴ and 6.73 × 10⁴.

Full-Text PDF

Select your language of interest to view the total content in your interested language