| abstract |
The present invention relates to new aziridine derivative that is represented by following general chemical formulae (Ia) or (Ib), and to their preparation method.In the above mentioned chemical formulae, R2 and R3 can be same or different, and they are hydrogen, low-quality alkyl or cycloalkyl respectively; R4 can be selected among hydrogen, alkyl, aril, or amino protective group, and amino protective group is, for example, (PH)3C, FMOC (9-fluorenylmethy1 oxycarbonyl), alkoxycarbonyl, ariloxycarbonyl, aralkyloxycarbonyl and R5CO, R5SO2 where R5 is alkyl or aril or aralkyl. |