T-type calcium channel blockers: spiro-piperidine azetidines and azetidinones-optimization, design and synthesis

A series of spiro-azetidines and azetidinones has been evaluated as novel blockers of the T-type calcium channel (CaV3.2) which is a new therapeutic target for the potential treatment of both inflammatory and neuropathic pain. Confirmation and optimization of the potency, selectivity and DMPK properties of leads will be described.