N. Brosse et al., Synthesis of N-(protected)aminophthalimides: application to the synthesis of singly labelled isoniazid, J CHEM S P1, (22), 1998, pp. 3685-3688
The synthesis of a series of N-(protected)aminophthalimides and the removal
of their phthaloyl group leading to N-(protected) or N,N-bis(protected)hyd
razines is described. As illustrated by the synthesis of monolabelled isoni
azid 3b*, this strategy can be utilized for the preparation of monolabelled
substituted hydrazines.