(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(3,5-di-t-butylphenyl)propane-2,2-diyl)bis(8,8a-dihydro-3aH-indeno[1,2-d]oxazole) (S,R)-BDTBIn-SaBOX

Technical Note:1. Ligand used in the copper-catalyzed, highly enantioselective cyclopentannulation of indoles with donor- acceptor cyclopropanes.Reference:1. J. Am. Chem. Soc., 2013, 135, 7851.