Patent ID: 6867299

Claim:
The compound of the formula wherein R 2 is hydrogen, unsubstituted lower alkyl, lower alkoxy, halo, hydroxy or cyano; R 3 is hydrogen, unsubstituted lower alkyl, lower alkoxy, halo, or cyano; R 5 is hydrogen, unsubstituted lower alkyl, lower alkoxy, halo, or cyano; R 6 is hydrogen, unsubstituted lower alkyl, lower alkoxy, halo, or cyano; R 7 is hydrogen, or unsubstituted lower alkyl; R 9 is hydrogen, lower alkyl, or aryl-lower alkyl; and R 10 is hydrogen R 11 is H or lower alkyl, R 13 is H or unsubstituted lower alkyl, n=0 or 1, R a , R b are lower alkyl or R a and R b taken together with the carbon atom to which they are attached form a 3 to 7 member carbocycle, and R 12 is heterocyclyl, aryl or lower cycloalkyl and Z is O, S or NR 28 , wherein R 28 is H or lower alkyl.