HCID 66910930, compound → HCID 58265593, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 5.0 g (15.2 mmol) N-[6-(6-methyl-pyridine-3-carbonyl)-7-oxo-4,5,6,7-tetrahydro-benzothiazol-2-yl]-acetamide (A-23) and 3.74 g (16.7 mmol) (2-chloro-4-nitro-phenyl)-hydrazine hydrochloride in 100 mL glacial acetic acid is stirred at 60° C. After stirring for 24 h at 60° C. the solvent is evaporated, the residue taken up in 200 mL of ACN and stirred for 20 min. The solid is filtered off and dried at 40° C. yielding 5.33 g of the desired product.

Provenance & Evidence