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US 6,583,285 B1Granted
Process for preparing zolpidem
AssigneeBoehringer Ingelheim Pharma GmbH & Co. KG
InventorsMarkus Sauter, Wolfgang Wohlleben
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Abstract
The invention relates to a process for preparing a compound of formula (I) wherein a compound of formula (II), wherein R1 denotes chlorine, bromine, iodine, —O—COCH3, tosylate or mesylate, is reacted with a compound of formula (III), optionally in a suitable diluent and/or in the presence of a suitable added reagent or catalyst, the reaction being carried out in a temperature range from 20 to 80° C.
Claims7
A process for preparing a compound of formula (I)
- wherein
- a compound of formula (II)
- wherein
- R1 denotes chlorine, bromine, iodine, —O—COCH3, tosylate or mesylate, is reacted with a compound of formula (III),
- optionally in a suitable diluent and/or in the presence of a suitable added reagent or catalyst,
- wherein the reaction is carried out in a temperature range from 20 to 80° C.
3 more elements
Dependencies are inferred from the claim text.