| abstract |
wherein n Z 1 is (CH 2 ) q or C═O; Z 2 is (CH 2 ) p or C═O; D is —CH═ or C═O or (CH 2 ) m where m is 0, 1, 2 or 3; n=0, 1 or 2; p=1 or 2; q=0, 1 or 2; Q is C or N; A is (CH 2 ) x where x is 1 to 5, or A is (CH 2 ) x 1 , where x 1 is 1 to 5 with an alkenyl bond or an alkynyl bond embedded anywhere in the chain, or A is —(CH 2 ) x 2 —O—(CH 2 ) x 3 — where x 2 is 0 to 5 and x 3 is 0 to 5, provided that at least one of x 2 and x 3 is other than 0; B is a bond or is (CH 2 ) x 4 where x 4 is 1 to 5; X is CH or N; X 2 is C, N, O or S; X 3 is C, N, O or S; X 4 is C, N, O or S; X 5 is C, N, O or S; X 6 is C, N, O or S; n nprovided that at least one of X 2 , X 3 , X 4 X 5 and X 6 is N; and at least one of X 2 , X 3 , X 4 X 5 and X 6 is C. n R 1 is H or alkyl; R 2 is H, alkyl, alkoxy, halogen, amino, substituted amino or cyano; R 2a , R 2b and R 2c may be the same or different and are selected from H, alkyl, alkoxy, halogen, amino, substituted amino or cyano; and R 3 , E, Z and Y are as defined herein. |