A new series of 1,4,5,6,7,8-hexahydroquinolines (9a-j) has been synthesized
and their structural features studied by X-ray analysis and theoretical ca
lculations at semiempirical and ab initio levels. A good correlation is fou
nd between the most stable conformation predicted for compounds 9 and that
obtained by experimental X-ray diffraction for 9h. The obtained geometrical
features for 9 are similar to those found for other related active calcium
modulators.