(2015/11/16)
p. 8797 - 8800
(2007/10/03)5-bromothiophene-2-carboxylic acid
methyl 4-aminothiophene-2-carboxylate
methyl 5-bromo-4-nitrothiophene-2-carboxylate
5-bromo-2-thiophenecarboxylic acid methyl ester
methyl 4-fluorothiophene-2-carboxylate