(19)
(11) EP 4 121 412 A1

(12)

(43) Date of publication:
25.01.2023 Bulletin 2023/04

(21) Application number: 20932102.5

(22) Date of filing: 19.04.2020
(51) International Patent Classification (IPC): 
C07C 319/18(2006.01)
C07C 323/25(2006.01)
 C07C 319/26(2006.01)
(52) Cooperative Patent Classification (CPC):
C07C 319/26; C07C 319/18
 
C-Sets:
  1. C07C 319/18, C07C 323/25;
  2. C07C 319/26, C07C 323/25;
(86) International application number:
PCT/US2020/028897
(87) International publication number:
WO 2021/216029 (28.10.2021 Gazette 2021/43)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: Amsa, Inc.
Auburn, MI 48611 (US)

(72) Inventors:
  • HAAG, Anthony, P.
    Bozeman, MT 59718 (US)
  • THOMAS, Pulikkottil, Jacob
    Midland, MI 48642 (US)

(74) Representative: Beck Greener LLP 
Fulwood House 12 Fulwood Place
London WC1V 6HR
London WC1V 6HR (GB)

   


(54) PROCESS FOR PREPARING DTEA HCI