New aziridine derivatives and their preparation methods
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United States of America Patent
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app pub date -
Mar 24, 2006
filing date -
Apr 19, 2001
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Abandoned
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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.sub.2 and R.sub.3 can be same or different, and they are hydrogen, low-quality alkyl or cycloalkyl respectively; R.sub.4 can be selected among hydrogen, alkyl, aril, or amino protective group, and amino protective group is, for example, (PH).sub.3C, FMOC (9-fluorenylmethyl oxycarbonyl), alkoxycarbonyl, ariloxycarbonyl, aralkyloxycarbonyl and R.sub.5CO, R.sub.5SO.sub.2 where R.sub.5 is alkyl or aril or aralkyl.
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