CHEMBIOCHEM, vol. 5, no. 11, page. 1517 - 1522, 2004-11-05
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 126, no. 21, page. 6528 - 6529, 2004-06-02
TETRAHEDRON LETTERS, vol. 45, no. 18, page. 3543 - 3546, 2004-04-26