| abstract |
A compound of the formula ##STR1## wherein R is halogen, C 1 -C 2 alkyl, C 1 -C 2 alkoxy, nitro; cyano; C 1 -C 2 haloalkyl, or R a SO n -- wherein n is 0 or 2 and R a is C 1 -C 2 alkyl; R 1 is hydrogen or C 1 -C 4 alkyl; R 2 is hydrogen or C 1 -C 4 alkyl; or R 1 and R 2 together are alkylene having 2 to 5 carbon atoms; R 3 is hydrogen or C 1 -C 4 alkyl; R 4 is hydrogen or C 1 -C 4 alkyl; or R 3 and R 4 can be oxo; R 5 is hydrogen or C 1 -C 4 alkyl; R 6 is hydrogen or C 1 -C 4 alkyl; or R 5 and R 6 together are alkylene having 2 to 5 carbon atoms; and R 7 and R 8 independently are (1) hydrogen; (2) halogen; (3) C 1 -C 4 alkyl; (4) C 1 -C 4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C 1 -C 4 haloalkyl; (9) R b SO n -- wherein n is the integer 0, 1 or 2; and R b is (a) C 1 -C 4 alkyl; (b) C 1 -C 4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR c R d wherein R c and R d independently are hydrogen or C 1 -C 4 alkyl; (11) R e C(O)-- wherein R e is C 1 -C 4 alkyl or C 1 -C 4 alkoxy; (12) SO 2 NR c R d wherein R c and R d are as defined; or (13) --N(R c )C(O)R d wherein R c and R d are as defined; m is the integer 0, 1 or 2; and R 9 is C 1 -C 4 alkyl, phenyl, cyano, substituted phenyl, or --(CH 2 ) x --C(O)O-- (C 1 -C 4 alkyl) whrein X is the integer 1, 2 or 3. |