prov:value
| - Preferred substituents on the benzene ring, include, but are not limited to, one or more selected from alkylenedioxy, particularly -methylenedioxy, preferably 3,4-methylenedioxy, ethylenedioxy, aryl, particularly phenyl, dimethylamino, diethylamino, benzyl, alkoxy, particularly lower alkoxy, such as methoxy and ethoxy, halide, and alkyl, preferably loweralkyl.
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