Patent ID: 8802869

Claim:
A method of manufacturing comprising reacting a compound or a salt thereof expressed by formula (I) below wherein R 1 , R 2 , or R 3 represents a hydrogen atom, a lower alkyl group, a hydroxy group, or a lower alkoxy group, and a compound or a salt thereof expressed by formula (II) below wherein R 4 represents a hydrogen atom, a lower alkyl group, a nitro group, an amino group, or a lower alkylamino group, R 5 represents a hydrogen atom or a lower alkyl group, R 6 represents a hydrogen atom, a halogen atom, a lower alkyl group, a carboxyl group, a nitro group, or —NR a R b , wherein R a and R b are the same or different and each represents a hydrogen atom, a formyl group, a lower alkyl carbonyl group, a lower alkenyl carbonyl group, a lower cycloalkyl carbonyl group, an aryl carbonyl group, a carboxyl group, a lower alkoxy carbonyl group, a lower alkenyloxycarbonyl group, a lower cycloalkyloxycarbonyl group, an aryloxy carbonyl group, or an arylalkyloxycarbonyl group, and X represents a halogen atom, a lower alkylsulfonyloxy group, or an aryl sulfonyloxy group, to produce, a compound or a salt thereof expressed by formula (III) below wherein R 1 , R 2 , R 3 , R 4 , R 5 , or R 6 have the same definitions as in formula (I) and formula (II) above, wherein the compound or the salt thereof expressed by formula (I) above and the compound or the salt thereof expressed by formula (II) above are reacted in the presence of carbonate and copper salt or in presence of hydroxide salt, carbonate, and copper salt.