elemental analyses for C, H, and N. FINNIGANMAT 8430 spectrometer operating at an ionization potential of 70 eV was used for mass spectra. Shimadzu IR-460 spectrometer was employed for IR spectra. BRUKER DRX-500 AVANCE spectrometer at 500.1 and 125.8 MHz was used for 1H, and 13CNMR spectra for solutions in CDCl3 with TMS as internalstandard or 85% H3PO4 as external standard, respectively. RESULTS We describe