Synthesis of N-(protected)aminophthalimides: application to the synthesis of singly labelled isoniazid

Abstract
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)hydrazines is described. As illustrated by the synthesis of monolabelled isoniazid 3b*, this strategy can be utilized for the preparation of monolabelled substituted hydrazines.

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