[1]Patent:WO2011/19405,2011,A1,.Locationinpatent:Page/Pagecolumn208
[2]Tetrahedron,2007,vol.63,#38,p.9401-9405
[1]Tetrahedron,2007,vol.63,#38,p.9401-9405
[2]Patent:WO2011/19405,2011,A1,
221352-10-9
92203-40-2