Examples [of Substituent Group A] include alkyl groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 10, such as a methyl, ethyl, isopropyl, tert-butyl, n-octyl, n-decyl, n-hexadecyl, cyclopropyl, cyclopentyl, and cyclohexyl); alkenyl groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 10, such as a vinyl, allyl, 2-butenyl, and 3-pentenyl); alkynyl groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 10, such as propargyl and 3-pentynyl); aryl groups (preferably with a carbon number of 6 to 30, more preferably with a carbon number of 6 to 20, and especially preferably with a carbon number of 6 to 12, such as phenyl, p-methylphenyl, naphthyl, and anthracenyl); amino groups (preferably with a carbon number of 0 to 30, more preferably with a carbon number of 0 to 20, and especially preferably with a carbon number of 0 to 10, such as amino, methylamino, dimethylamino, diethylamino, dibenzylamino, diphenylamino, and ditolylamino); alkoxy groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 10, such as methoxy, ethoxy, butoxy, and 2-ethylhexyloxy); aryloxy groups (preferably with a carbon number of 6 to 30, more preferably with a carbon number of 6 to 20, and especially preferably with a carbon number of 6 to 12, such as phenyloxy, 1-naphthyloxy, and 2-naphthyloxy); heterocyclic oxy groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as pyridyloxy, pyrazyloxy, pyrimidyloxy, and quinolyloxy); acyl groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 12, such as acetyl, benzoyl, formyl, and pivaloyl); alkoxycarbonyl groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 12, such as methoxycarbonyl and ethoxycarbonyl); aryloxycarbonyl groups (preferably with a carbon number of 7 to 30, more preferably with a carbon number of 7 to 20, and especially preferably with a carbon number of 7 to 12, such as phenyloxycarbonyl); acyloxy groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 10, such as acetoxy and benzoyloxy); acylamino groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 10, such as acetylamino and benzoylamino); alkoxycarbonylamino groups (preferably with a carbon number of 2 to 30, more preferably with a carbon number of 2 to 20, and especially preferably with a carbon number of 2 to 12, such as methoxycarbonylamino); aryloxycarbonylamino groups (preferably with a carbon number of 7 to 30, more preferably with a carbon number of 7 to 20, and especially preferably with a carbon number of 7 to 12, such as phenyloxycarbonylamino); sulfonyl amino groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as methanesulfonyl amino and benzenesulfonyl amino); sulfamoyl groups (preferably with a carbon number of 0 to 30, more preferably with a carbon number of 0 to 20, and especially preferably with a carbon number of 0 to 12, such as sulfamoyl, methylsulfamoyl, dimethylsulfamoyl, and phenylsulfamoyl); carbamoyl groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as carbamoyl, methylcarbamoyl, diethylcarbamoyl, and phenylcarbamoyl); alkylthio groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as methylthio and ethylthio); arylthio groups (preferably with a carbon number of 6 to 30, more preferably with a carbon number of 6 to 20, and especially preferably with a carbon number of 6 to 12, such as phenylthio); heterocyclic thio groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as pyridylthio, 2-benzimidazolylthio, 2-benzoxazolylthio, and 2-benzothiazolylthio); sulfonyl groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as mesyl and tosyl); sulfinyl groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as methanesulfinyl and benzenesulfinyl); ureido groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as ureido, methylureido, and phenylureido); phosphoric amide groups (preferably with a carbon number of 1 to 30, more preferably with a carbon number of 1 to 20, and especially preferably with a carbon number of 1 to 12, such as diethylphosphoramide and phenylphosphoramide); a hydroxy group; a mercapto group; halogen atoms (such as a fluorine atom, chlorine atom, bromine atom, and iodine atom); a cyano group; a sulfo group; a carboxyl group; a nitro group; a hydroxamic acid group; a sulfino group; a hydrazino group; an imino group; heterocyclic groups (also including aromatic heterocyclic groups, preferably with a carbon number of 1 to 30 and more preferably with a carbon number of 1 to 12, with examples of the hetero atom including a nitrogen atom, an oxygen atom, a sulfur atom, a phosphorus atom, a silicon atom, a selenium atom, and a tellurium atom, and with concrete examples including pyridyl, pyrazinyl, pyrimidyl, pyridazinyl, pyrrolyl, pyrazolyl, triazolyl, imidazolyl, oxazolyl, thiazolyl, isoxazolyl, isothiazolyl, quinolyl, furyl, thienyl, selenophenyl, tellurophenyl, piperidyl, piperidino, morpholino, pyrrolidyl, pyrrolidino, benzoxazolyl, benzimidazolyl, benzothiazolyl, a carbazolyl group, azepinyl group, and silolyl group); silyl groups (preferably with a carbon number of 3 to 40, more preferably with a carbon number of 3 to 30, and especially preferably with a carbon number of 3 to 24, such as trimethylsilyl and triphenylsilyl); silyloxy groups (preferably with a carbon number of 3 to 40, more preferably with a carbon number of 3 to 30, and especially preferably with a carbon number of 3 to 24, such as trimethylsilyloxy and triphenylsilyloxy); and phosphoryl groups (such as a diphenylphosphoryl group and a dimethylphosphoryl group). These substituents may be further substituted, and examples of the further substituent include groups selected from the Substituent Group A described above.