Patent ID: 7897610

Claim:
A method for the treatment of a pathology associated with the constriction of smooth muscle cells selected from arterial hypertension and asthma in a subject in need thereof, said method comprising administering to said subject a compound of formula (Ia): in which: R 1 and R 2 represent a hydrogen atom, R 5 represents a hydrogen atom, or a linear or substituted alkyl group with 1 to 10 carbon atoms, or an ester of formula COOR′ in which R′ represents a linear or substituted alkyl group with 1 to 10 carbon atoms, Y represents an —OH, —SH, or —NH 2 group, each of R 7 , R 8 , R 9 , and R 10 is, independently, a hydrogen, chlorine, bromine, or fluorine atom, and X represents an anion.