Cleavage of enantiomers of methano-1H-cyclooct[b]indol-9-ol and their absolute configuration

Chiral 6R and 6S-(6, 9, 10)]methano-1H-cyclooctb]indol-9-ols were segregated into enantiomers through diastereomeric esters with (R)--trifluoromethylphenylacetic acid. The absolute configuration of the enantiomers was established by the NMR method using the shift reagent Eu(fod)₃ and the circular dichroism spectra.