[1]Xu;Yakushijin;Horne[TetrahedronLetters,1993,vol.34,#44,p.6981-6984]
[1]Xu;Yakushijin;Horne[TetrahedronLetters,1993,vol.34,#44,p.6981-6984]
[1]Xu;Yakushijin;Horne[TetrahedronLetters,1993,vol.34,#44,p.6981-6984]
[1]Xu;Yakushijin;Horne[TetrahedronLetters,1993,vol.34,#44,p.6981-6984]
[1]Xu;Yakushijin;Horne[TetrahedronLetters,1993,vol.34,#44,p.6981-6984]