prov:value
| - thiocyanato or an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkylthio, arylthio or cycloalkylthio radical, R5 is hydrogen or an alkyl or aryl radical or R4 and R5 together form a five- to eight-membered ring, R6 is hydrogen, halogen, nitro, acylamino, cyano, thiocyanato or an alkyl, alkenyl, alkoxyalkyl, aryl, aralkyl, alkylthio, cycloalkylthio or arylthio radical, R7 is an alkyl, cycloalkyl, perfl
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