Identification of a Novel 1′‐[5‐((3,5‐Dichlorobenzoyl)methylamino)‐3‐(3,4‐dichlorophenyl)‐4‐ (methoxyimino)pentyl]‐2‐oxo‐(1,4′‐bipiperidine) (I) as a Dual NK1/NK2 Antagonist.