Source:
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry. Nov2008, Vol. 49 Issue 47, p6724-6727. 4p.
Source:
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry. Mar2007, Vol. 48 Issue 10, p1735-1738. 4p.