Marko, Istvan E.; Ates, Ali; Augustyns, Benoit; Gautier, Arnaud; Quesnel, Yannick; Turet, Laurent; Wiaux, Marianne
Tetrahedron Letters, 1999 , vol. 40, # 30 p. 5613 - 5616

Otera, Junzo; Niibo, Yoshihisa; Okuda, Kazuhiro
Chemistry Letters, 1986 , p. 1829 - 1832