BIOLOGICALLY ACTIVE METHYLENE BLUE DERIVATIVES

摘要

A phenothiazinium compound of Formula (I) wherein: A and B each independently is in which R' and R'' each independently is a linear, branched or cyclic hydrocarbon group, or R' and R'' together with the N atom to which they are attached form an optionally substituted 5-, 6- or 7-membered ring; and where X^P- is a counteranion and P is 1, 2 or 3; except for the compounds in which A and B are both either -N(CH₃)₂ or -N(CH₂CH₃)₂ for use in a treatment that requires removal, deactivation or killing of unwanted tissues or cells.