Patent ID: 7265142

Claim:
A method for blocking a calcium channel in a patient in need of such blocking wherein said method comprises administering to said patient a calcium channel blocking compound wherein said compound has the following structure: wherein: X=a bond, (CH 2 ) n , O, or O(CH 2 ) n , wherein n=1-6; R 1 =C 1-6 alkyl, optionally substituted with OH or NH 2 ; R 2 =F or COOR 5 , wherein R 5 is C 1-6 alkyl, optionally substituted with OH or NH 2 ; R 3 =CH 3 or (CH 2 ) n —COOR 6 , wherein n=1-6 and R 6 is C 1-6 alkyl, optionally substituted with OH or NH 2 ; R 4 = R 15 =(CH 2 ) n COOR 16 , R 16 =C 1-6 alkyl, optionally substituted with OH or NH 2 , and R 17 =not present or COOR 18 wherein R 18 is C 1-6 alkyl, optionally substituted with OH or NH 2 , and wherein n=1-6.