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Discovery of orally bioavailable NK1 receptor antagonists
C Genicot1, B Christophe, P Collart
1Chemistry Department, UCB Pharma, Chemin du Foriest, B-1420, Braine-l'Alleud, Belgium. christophe.genicot@ucb-group.com
Bioorganic & Medicinal Chemistry Letters
|February 5, 2003
Abstract:
Benzyloxyphenethylpiperazines are a new class of high affinity NK1 receptor antagonists. Oral bioavailability and selectivity can be fine tuned by the nature of the substituents on the basic nitrogen atom. Addition of substituents with a carboxylic acid group led to very selective and orally active NK1 antagonists free of interaction with L-type calcium channels.