Calcium Channels

13C NMR (101 MHz, DMSO-= 8

13C NMR (101 MHz, DMSO-= 8.9 Hz, 2H), 7.55 (d, = 8.9 Hz, 2H), 7.48 (dd, = 14.3, 7.7 Hz, 2H), 7.23 (td, = 7.7,