prov:value
| - In the following reaction formulas, Ar, D, E, G, R3, R4, X1, X2, Y1 and n are as defined in the above formula (I), R6 is a hydrogen atom, an alkyl group of 1 to 5 carbon atoms, an amino group, or a monoalkylamino group of 1 to 5 carbon atoms, R7 and R8 are taken together with the adjacent nitrogen atom to represent a pyrrolidino group, a piperidino group, a morpholino group, an N-methylpiperazino
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