参考文献

Narayanaperumal, Senthil; Alberto, Eduardo E.; Gul, Kashif; Kawasoko, Cristiane Yuriko; Dornelles, Luciano; Rodrigues, Oscar E.D.; Braga, Antonio Luiz Tetrahedron, 2011 , vol. 67, # 25 p. 4723 - 4730