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Gu Xiaoxing
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??+86-519-86461196;86464994
2-[2-[2-(??????)-4-(1,1-?????)-5-????]????]-1-[(4-?????)??]-1H-????-4,5-???????
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4,4'-??[(4-?????)??][1,1'-???]-4,4'-????????
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4- [(4- ??? ??) ??] -2,2,6,6- ??? ?? -3,5- ????
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1,1'-(1-??-2-???-1,2-????)??[4-(?????)??]
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