Vibrational Dynamics of 2-[3-(p-flourobenzoyl) Propyl]- 1,2,3,4,6,7,12,12, a-octahydropyrazino[2’,1’:6,1] Pyrido [3,4-b] Indole [centbutindole]: A Potent Nuroleptic Drug

Abstract

FITR spectra and normal mode analysis of compound 2-[3-(p-flourobenzoyl)propyl]-1,2,3,4,6,7,12,12, a-octahydropyrazino[2’,1’:6,1] pyrido [3,4-b] indole [centbutindole], which is a potent nuroleptic drug and belong to a series of 2-substituted pyrazino-pyrido indoles. It also blind with 5HT2 receptors. It has shown good antihypotensive activity. The well known Wilson’s G-F matrix method with Urey-Bradely force field has been used to evaluate the normal mode frequencies of vibration. Good agreement has been obtain between them and a set of 29 force field constants is established. The vibrational dynamics of the title compound is being reported using Urey Bradley force field. It has shown acute toxicity, gross behavior and central effects like anti convulsant activity, anti reserpine activity and stereo specificity of action. The conformation of the title compound was determined by X-ray diffraction. It is planned to determine the conformation in such cases by the application of Fourier Transform Infrared (FITR) spectroscopy and normal mode analysis. As a first step in this direction the FITR spectrum of the title compound has been recorded and its normal mode analysis is carried out. The assignments of the frequencies are based on the theoretically calculated frequencies have also been given their best assignment.