prov:value
| - Herein, the substituent of aryl includes a lower alkoxy group (for example, C1-6 alkoxy such as methoxy, ethoxy and propoxy), a halogen atom (for example, fluorine, chlorine, bromine and iodine, and the like), lower alkyl (for example, C1-6 alkyl such as methyl, ethyl and propyl), lower alkenyl (for example, C2-6 alkenyl such as vinyl and allyl), lower alkynyl (for example, C2-6 alkynyl such as et
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