The absolute stereoschemistry at C-12 in 12-hydroxylated neo-clerodane diterpenoids

Article abstract of DOI:10.1016/S0040-4020(01)88472-6

A study of the ¹H and ¹³C NMR, spectra, variation of the molecular rotations and behavior in the CD exciton chirality method of several C-12 epimers of 12-hydroxy-, 12-acetory- and 12-benzoyloxy-neo-clerodane derivatives has been achieved, providing useful alternative methods for establishing the C-12 absolute configuration of this kind of compounds.