A new method for the synthesis of ethyl (1α, 5α<i>, </i>6α)-3-benzyl-3-azabicyclo[3.1.0.]hexane-2,4-dione-6-carboxylate: An intermediate for the trovafloxacin side chain<sup>$</sup>
873-875A convenient
and high yield process for ethyl (1α, 5α, 6α)-3-benzyl-3-azabicyclo[3.1.0.]hexane-2,4-dione-6-carboxylate
using
a facile endo-exo
conversion by DBU is described