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US 2025/0179005 A1Published application
Crystalline 2-fluoro-3-nitrotoluene and process for the preparation thereof
AssigneesF.I.S.-Fabbrica Italiana Sintetici S,P.A., Amgen Inc.
InventorsElena BRASOLA, Marco Di Silvestro
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Abstract
The present invention refers to a crystalline 2-fluoro-3-nitrotoluene compound of formula (I): and a process for the preparation thereof. Furthermore, the present invention relates to a process for the synthesis of a compound of formula (II): or salts thereof by means of the crystalline 2-fluoro-3-nitrotoluene.
Claims20
Crystalline 2-fluoro-3-nitrotoluene of formula (I):
- wherein the crystalline 2-fluoro-3-nitrotoluene has a DSC onset peak at a value among 25.0 and 26.0° C. or a DSC maximum peak at a value among 26.0 and 27.5° C. or an X-ray powder diffraction pattern comprising a peak expressed in 2-Theta values (2θ) at 14.3±0.2.
-15. (canceled)
Dependencies are inferred from the claim text.