Patent ID: 6884903

Claim:
A compound of the formula in which R 1 is H, (C 1 -C 8 )alkyl, (C 3 -C 8 )alkenyl or (C 3 -C 8 )alkynyl, where the last 3 radicals are unsubstituted or substituted, R 6 is H or (C 1 -C 8 )alkyl which is unsubstituted or substituted, R 7 is (C 1 -C 8 )alkyl, (C 3 -C 8 )alkenyl, (C 3 -C 8 )alkynyl, (C 6 -C 14 )aryl or mono- or di-(C 1 -C 8 )alkylamino which are unsubstituted or substituted, or R 6 and R 7 together form a chain of the formula —(CH 2 ) m E m 1 , which is unsubstituted or substituted, and where m=2, 3 or 4, m 1 =0 or 1 and E=CO or SO 2 , R 8 radicals are identical or different and are (C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy, [(C 1 -C 4 )alkyl]carbonyl or [(C 1 -C 4 )alkoxy]carbonyl which are unsubstituted or substituted, or R 8 is halogen, NO 2 or CN, n is 0, 1, 2 or 3, and wherein, the substituents are halogen, (C 1 -C 8 )alkoxy, (C 1 -C 8 )haloalkoxy, (C 1 -C 8 )alkylthio, hydroxyl, amino, nitro, carboxyl, cyano, azido(C 1 -C 8 )alkoxycarbonyl, (C 1 -C 8 )alkylcarbonyl, formyl, carbamoyl, mono- and di-(C 1 -C 8 )alkylaminocarbonyl, acylamino, mono- and di-(C 1 -C 8 )alkylamino, (C 1 -C 8 )alkylsulfinyl, (C 1 -C 8 )haloalkylsulfinyl, (C 1 -C 8 )alkylsulfonyl, halo(C 1 -C 8 )alkylsulfonyl, (C 1 -C 8 )cycloalkyl, (C 1 -C 8 )cycloalkenyl, wherein the cycloalkyl and cycloalkyl radicals are optionally substituted by (C 1 -C 8 )alkyl and halo(C 1 -C 8 )alkyl, (C 1 -C 8 )alkenyl, (C 1 -C 8 )alkynyl, (C 1 -C 8 )alkenyloxy or (C 1 -C 8 )alkynyloxy.