nyl, which can be optionally substituted by 0, 0, or 0 substituents independently selected from the group consisting of F, Cl, Br, I,  - CN,  - NO0,  - OH,  - NH0,  - SH,  - O - CH0,  - O - C0H0,  - O - CH(CH0)0,  - O - C(CH0)0,  - S - CH0,  - S - C0H0,  - S - CH(CH0)0,  - S - C(CH0)0,  - NH - CH0,  - NH - C0H0,  - NH - C(CH0)0,  - N(CH0)0,  - N(C0H0)0,  - N(CH0) - (C0H0),  - OCF0, and  - SCF0. P