895569-73-0Relevant articles and documents
A new class of selective, non-basic 5-HT2A receptor antagonists
Ladduwahetty, Tammy,Boase, Amanda L.,Mitchinson, Andrew,Quin, Caroline,Patel, Smita,Chapman, Kerry,MacLeod, Angus M.
, p. 3201 - 3204 (2006)
Based on an existing series of 5-HT2A receptor ligands containing a basic nitrogen, we designed a non-basic lead that had reduced affinity for both the 5-HT2A receptor and the IKr potassium channel. The present paper describes the development of this lead to a novel series of non-basic piperidine sulfonamides and amides that have high affinity for the 5-HT2A receptor, whilst maintaining excellent selectivity over off target activities such as the IKr channel. This work has shown that the proposed pharmacaphore model for the 5-HT2A receptor which suggests that a basic nitrogen is required for the binding of ligands is questionable.