NOVEL CHIRAL N-ACYL-5,6,7,(8-SUBSTITUTED)-TETRAHYDRO-[1,2,4]TRIAZOLO[4,3-A]PYRAZINES AS SELECTIVE NK-3 RECEPTOR ANTAGONISTS, PHARMACEUTICAL COMPOSITION, METHODS FOR USE IN NK-3 RECEPTOR MEDIATED DISORDERS AND CHIRAL SYNTHESIS THEREOF

摘要

The present invention relates to novel compounds of Formula I
and their use in therapeutic treatments. The invention further relates to a novel chiral synthesis of 5,6,7,(8-substituted)-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazines using N-sp3 protective groups. The invention also provides intermediates for use in the synthesis of compounds of Formula I.