The structure of compound 3 was confirmed by 1H- and 13C-NMR, IR, and mass spec- FtFriigagulurdreea2t2a.. ,CCaiinlnlcchohofonnwaah--ssiqqcuuhaawrraaemmrieiddceeoccnaatstaailslyytsestntIIt..with the proposed structure. trraatliodOTvahatSaelOu,Nsaetlrwluocaf+tsuwdrheeHitoceOfhrmcwoi...