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A new selective preparation of ethyl 7-aminopteridine-6- carboxylate derivatives and related compoundYoichi Yamada; Heinosuke Yasuda; Yuichi Yoshihara; Kazue Yoshizawa · 1999
ChemInform Abstract: A New Selective Preparation of Ethyl 7-Aminopteridine-6-carboxylate Derivatives and Related Compound.Yoichi Yamada; Heinosuke Yasuda; Yuichi Yoshihara; Kazue Yoshizawa · 2000