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EP 4 739 773 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24746059.5 (22) Date of filing: 08.07.2024

(51) International Patent Classification (IPC):  C12N 9/18(2006.01) B09B 3/60(2022.01) C12N 15/52(2006.01) A62D 3/02(2007.01) C08J 11/10(2006.01) (52) Cooperative Patent Classification (CPC): C12N 9/18; C12Y 301/01; C08J 11/105; B09B 3/60; C12N 15/52; C12Y 301/01074; B09B 2101/75; C08J 2367/02; Y02W 30/62 (86) International application number: PCT/IB2024/056641 (87) International publication number: WO 2025/012799 (16.01.2025 Gazette 2025/03)

(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: GE KH MA MD TN (30) Priority: 07.07.2023 IT 202300014223 (71) Applicants: Politecnico di Milano 20133 Milano (IT) Latvian Institute Of Organic Synthesis 1006 Riga (LV)	(72) Inventors: GAUTIERI, Alfonso 20133 Milano (IT) PARISINI, Emilio 20133 Milano (IT) ESTIRI, Hajar 20133 Milano (IT) CASTAGNA, Rossella 20133 Milano (IT) BHATTACHARYA, Shapla 20133 Milano (IT) (74) Representative: Delbarba, Andrea  Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)