| 摘要 |
Compound of formula (I): wherein: Ra represents a hydroxy, alkoxy, aryloxy or arylalkyloxy group, A represents a CH group or a nitrogen atom, in which case R<1> is as defined in the description, or R<1>-A together represent an oxygen atom or a group wherein R<3> and R<4> are as defined in the description, R<2> being a hydrogen atom or an alkyl group, Rb and Rc, which may be identical or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group or a trihaloalkyl group, n is an integer of from 2 to 6 inclusive, m and p are integers of from 0 to 6 inclusive.
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