(R)-2,2',3,3'-Tetrahydro-6,6'-bis(2,4,6-tri-isopropylphenyl)-1,1'-spirobi[1H-indene]-7,7'-diol, 95% (99% ee)

(R)-2,2',3,3'-Tetrahydro-6,6'-bis(2,4,6-tri-isopropylphenyl)-1,1'-spirobi[1H-indene]-7,7'-diol, 95% (99% ee)