Zopiclone 7.5 MG is an effective & widely used sleeping tablet in treating sleep disorders, especially short-term insomnia. It is one of the most trusted and easily available sleeping pills online today which belongs to a class of drugs called cyclopyrrolones.
U.S. Pat. NO. 3,862,149 patent discloses the process for the preparation of Zopiclone, wherein 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydro pyrrolo-[3,4-b]-pyrazine is condensed with 1-chlorocarbonyl-4-methyl-piperazine in the presence of strong base such as sodium hydride in dimethylformamide to give Zopiclone.
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