Patent ID: 7449594

Claim:
A compound of the formula XI wherein: R1 is hydrogen, alkyl having 1, 2, 3 or 4 carbon atoms, alkoxy having 1, 2, 3 or 4 carbon atoms, NR10R11, —O p —(CH 2 ) n —(CF 2 ) o —CF 3 or —(SO m ) q —(CH 2 ) r —(CF 2 ) s —CF 3 ; R10 and R11 are, independently of one another, hydrogen, alkyl having 1, 2, 3 or 4 carbon atoms or —CH 2 —CF 3 ; m is zero, 1 or 2; n, o, p, q, r and s are, independently of one another, zero or 1; R2 is hydrogen, F, Cl, Br, I, —(SO h ) z —(CH 2 ) k —(CF 2 ) l —CF 3 or alkyl having 1, 2, 3, 4, 5 or 6 carbon atoms; h is zero, 1 or 2; z is zero or 1; k is zero, 1, 2, 3 or 4; l is zero or 1; R3 and R4 are, independently of one another hydrogen or F; R7 is CN, and the salts thereof.