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US 2023/0053759 A1Published application
Preparation of a pharmaceutical intermediate
AssigneeDipharma Francis S.R.L.
InventorsFrancesca Della Penna, Valeria Nori, Fabio Pesciaioli, Armando Carlone
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Abstract
The present disclosure provides a new procedure for preparing a key intermediate for active pharmaceutical ingredients useful in the treatment of diseases related to the central nervous system.
Claims18
A process for preparing a compound of formula (I)
- comprising cyclizing the compound of formula (II)
- in presence of a sulfonated styrene-divinylbenzene copolymer ion exchange resin.
Dependencies are inferred from the claim text.