prov:value
| - The substituents preferably include those described in the paragraph [0269] ofJP-A-2002-287299, and are more preferably alkyl, aryl, alkoxy, aryloxy, acyl, acylamino, sulfonylamino, sulfamoyl, carbamoyl groups, halogen atoms, cyano, nitro and heterocyclic groups, and especially preferably alkyl, aryl groups and halogen atoms.X.sub.61, X.sub.62 and X.sub.63 are preferably halogen atoms, haloalkyl,
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