The present invention provides compounds represented by the formula (Ia):
the formula (Ib):
the formula (Ic):
and the formula (Id):
wherein each symbol is as defined in the specification.
According to the present invention, these compounds have a DGAT inhibitory activity and are useful for the prophylaxis, treatment or improvement of diseases or pathologies caused by high expression or high activation of DGAT.
The present invention provides compounds represented by the formula (Ie):
and the formula (If):
wherein each symbol is as defined in the specification.
According to the present invention, these compounds have a DGAT inhibitory activity and are useful for the prophylaxis, treatment or improvement of diseases or pathologies caused by high expression or high activation of DGAT.