4-phenyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline derivatives for the treatment of infertility

1 23 4 7 The present invention relates to 4-phenyl-5-oxo-1,4)5,6,7,8-hexahydroquinoline derivatives according to Formula I, Formula I or a pharmaceutically acceptable salt thereof, wherein Ris (1-6C)alkyl, (2-6C)alkenyl or (2-6C)aDcynyl; R, Rare independently halogen, (1-4C)allcyl, (2-4C)alkenyl, (2-4C)-alkynyl, (1-4C)aBcoxy, (3-4C)alkenyloxy or (3-4C)alkynyloxy; Ris phenyl or (2-5C)-heteroaryl, both substituted with Rand optionally substituted on the (hetero)aromatic ring with one or more substituents selected from hydroxy, amino, halogen, nitro, trifluoromethyl, cyano, (1-4C)alkyl, (1-4C)alkoxy, (1-4C)alkylthio and (di)(1-4C)-alkylamino. The invention also relates to pharmaceutical compositions comprising said derivatives, as well as to the use of these 4-phenyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline derivatives in therapy, more specifically for the treatment of infertility.