Process for the preparation of (8aS,12aS,13aS)-decahydroisoquino[2,1-g][1,6]-naphthyridin-8-one derivatives
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0505183A2
公开(公告)日:1992-09-23
The invention provides a process for preparing single enantiomers of compounds represented by the formula :
and chiral acid addition salts thereof ;
wherein :
X and Y are independently hydrogen ; lower alkyl ; lower alkoxy; or halo; or X and Y taken together is methylenedioxy or ethylene-1,2-dioxy;
which includes reduction of a compound represented by the formula :
to give a mixture of stereoisomers represented by the formula :
wherein each wavy line independently represents a bond in either the α or β position ;
followed by dissolving the mixture of stereoisomers and a chiral resolving acid in a suitable solvent and allowing the solution to crystallize, giving a salt of the desired enantiomer.
Decahydro-8H-isoquino[2,1-g][1,6]naphthyridine and
申请人:Syntex (U.S.A.) Inc.
公开号:US05229387A1
公开(公告)日:1993-07-20
Compounds of the formula ##STR1## wherein: m is an integer of 1-6; n is an integer of 1 or 2; X and Y are independently hydrogen; hydroxy; lower alkyl; lower alkoxy; or halo; or X and Y when adjacent and taken together are methylenedioxy or ethylene-1,2-dioxy; R is ##STR2## wherein: R.sup.1 and R.sup.2 are independently hydrogen or lower alkyl, or when taken together with the carbon to which they are attached are cycloalkyl; R.sup.3 is hydrogen, lower alkyl, lower alkoxy, hydroxy, trifluoromethyl or halo; and ##STR3## and pharmaceutically acceptable acid addition salts thereof. The compounds and salts exhibit useful pharmacological properties, including selective .alpha..sub.2 -adrenoceptor antagonist properties and 5-HT.sub.1A receptor partial agonist properties, and are particularly useful for the treatment of sexual dysfunction, depression and anxiety.