SEARCH Articles Figures Tables 1- Hydroxy-2- - -3-oxid 3- Phenylperhydropyrido oxazine 4-Phenylperhydropyrido 6-Hydroxy-2- -7-methylen 9-Hydroxy-9-phenylperhydropyrido Hydroxy methylenes Hydroxy oxides Hydroxy-, oxidation L-methylene-3- Methylene oxide