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. 2012 Apr-Jun;4(2):87–97.

Fig. 3.

Fig. 3

Synthesis of thiohydrazones based on the thiohydrazides of oxamineaicds: a – chloroacetyl chloride, DMF; b – 1) TEA, elemental sulphur, morpholine, DMF; 2) DMF, hydrazine hydrate; c – methanol, the corresponding aldehyde R 1 .