prov:value
| - Also, another embodiment is where R1, R2, R3, R4, R5, R6, R7, X and Y are as defined for Formula I or as defined by any of the above-preferred embodiments, with the exception that R5 is other than C1 to C7 alkoxy and, more preferably, is not methoxy, and even more preferably, when R2 is a hydrogen atom, R5 is other than C1 to C7 alkoxy.
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