Chande M S, Thakkar N V, Patil D V
Department of Chemistry, Institute of Science, Mumbai, India.
Acta Pol Pharm. 1999 May-Jun;56(3):207-10.
New bis[6-phenyl-4-methyl-3-substituted-pyrazo[4,5-d] pyrazol-1-yl]thioketones have been obtained in good yield by the reaction of thiocarbohydrazine with 1-phenyl-3-methyl-4-acetyl/benzoyl-pyrazol-5-one, followed by cyclization of the intermediate. The new compounds exhibit excellent antimicrobial activity.