| 摘要 |
A compound of formula I wherein Y is a single bond, C═O, C═S or S(O)m where m is 0, 1 or 2; the ring is a 6-membered aromatic or is a 5 or 6 membered heteroaromatic ring; Z and Z′are joined by a single or a double bond and are═C—or—N—provided that both are not N; Ra, R1, R2, R3, R3a, R4 and R8 are specified organic groups; n is 2, 3 or 4 and p is 0-4; or salts or N-oxides thereof. |
