Tetrahedron Letters
Tetrahedron Letters > 1998 > 39 > 20 > 3357-3358
Tetrahedron Letters > 1998 > 39 > 31 > 5583-5586
Tetrahedron Letters > 1998 > 39 > 36 > 6555-6556
Tetrahedron Letters > 1998 > 39 > 49 > 8933-8934
Tetrahedron Letters > 1998 > 39 > 49 > 9101-9102