Hexahydroindenopyridine compounds having antispermatogenic activity

Hexahydroindenopyridine compounds having the following formulaand relative stereochemistry ##STR1## where R.sup.1 is C.sub.1-6alkyl; R.sup.2 is hydrogen or C.sub.1-6 alkyl; R.sup.3 is carboxylor a group which is metabolized to a carboxyl group under mammalianphysiological conditions; R.sup.4 is halogen; mixtures of saidcompound and acid addition salts thereof exhibit potentantispermatogenic activity and are useful in a method of inhibitingspermatogenesis in mammals.

Cook, C., Jump, J., Zhang, P., Stephens, J. R., Fail, P., Lee, Y., & Wani, M. (1999). IPC No. U.S.Hexahydroindenopyridine compounds having antispermatogenic activity (Patent No. 5952336.)