SYNLETT, no. 2, page. 138 - 140, 1996-02
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, vol. 6, no. 1, page. 71 - 76, 1996-01-09
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 12, no. 6, page. 712 - 714, 1991-12-20
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, no. 9, page. 2270 - 2272, 1991-09