University of Kansas
Patent: US6359129 B1, 2002 ;
Location in patent: Example 3B ;

Dougherty, Joseph M; Probst, Donald A; Robinson, Randall E; Moore, Joel D; Klein, Thomas A; Snelgrove, Kelley A; Hanson, Paul R
Tetrahedron, 2000 , vol. 56, # 50 p. 9781 - 9790