ENANTIOMERS OF HEXAHYDRA-1H-INDOLO 3,2,1-DE - 1,5- NAPHTHYRIDINE

摘要

Enantiomers of the title compound of the formula: which have hitherto not been characterised specifically, are isolated from their mixtures by preparing addition salts with an enantiomer of a chiral acid. The diastereoisomers obtained are separated by fractional crystallisation and then converted back to the form of the base or of a pharmaceutically acceptable acid addition salt. The enantiomers of the above named compound are useful in therapy as they possess an antianoxic activity.