| abstract |
The present invention relates to new aziridine derivative that is represented by following general chemical formulae (la) or (lb), and to their preparation method. In the above mentioned chemical formulae, R 2 and R 3 can be same or different, and they are hydrogen, low-quality alkyl or cycloalkyl respectively; R 4 can be selected among hydrogen, alkyl, aril, or amino protective group, and amino protective group is, for example, (PH) 3 C, FMOC (9-fluorenylmethyl oxycarbonyl), alkoxycarbonyl, ariloxycarbonyl, aralkyloxycarbonyl and R 5 CO, R 5 SO 2 where R 5 is alkyl or aril or aralkyl. |