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EP 4 547 233 A1

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(43) Date of publication: 07.05.2025 Bulletin 2025/19 (21) Application number: 23830624.5 (22) Date of filing: 29.06.2023

(51) International Patent Classification (IPC):  A61K 31/137(2006.01) C07C 231/12(2006.01) A61K 31/165(2006.01) C07C 237/06(2006.01) C07C 303/22(2006.01) (52) Cooperative Patent Classification (CPC): C07C 237/06; A61K 31/165; C07C 309/29 (86) International application number: PCT/IB2023/056732 (87) International publication number: WO 2024/003797 (04.01.2024 Gazette 2024/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 30.06.2022 IN 202211037652 (71) Applicant: Synthimed Labs Private Limited Chandigarh 160002 (IN)	(72) Inventors: PRASAD, Ashok Industrial area Mohali 160055 (IN) TIWARI, Shashi Kant Industrial area Mohali 160055 (IN) CHAND, Onkar Industrial area Mohali 160055 (IN) KUMAR, Narender Industrial area Mohali 160055 (IN) (74) Representative: Mullholland, Lewis Paul  WP Thompson 1 Mann Island Liverpool L3 1BP Liverpool L3 1BP (GB)