 aryl radicals or heteroaryl radicals can each be optionally substituted by 0, 0, 0, 0, or 0 substituents independently selected from the group consisting of F, Cl, Br, I,  - CN,  - CF0,  - SF0,  - OH,  - O - (C0-0 alkyl),  - NH0,  - NO0,  - O - CF0,  - S - CF0,  - SH,  - S - (C0-0 alkyl),  - (C0-0 alkyl),  - C(═O) - OH,  - C(═O) - O - (C0-0 alkyl),  - NH - (C0-0 alkyl),  - N(C0-0 alkyl)0,  - NH