[EN] IMPROVED PROCESS FOR THE PREPARATION OF SEMAGLUTIDE<br/>[FR] PROCÉDÉ AMÉLIORÉ POUR LA PRÉPARATION DE SÉMAGLUTIDE
申请人:NEULAND LABORATORIES LTD
公开号:WO2021224938A1
公开(公告)日:2021-11-11
Improved process for the preparation of Semaglutide having the structural formula(I). His-Aib-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys (C18 di acid mono-t-butyl-y-Glu(AEEA-AEEA)-OtBu)-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly-OH Formula-I The present invention relates to the following fragments which are useful in the preparation of Semaglutide. Fragment- 1: Boc-His(X)-Aib-Glu(OtBu)-Gly-OH; wherein X is Boc or Trt Fragment-2: Fmoc-Thr(tBu)-Phe-Thr(tBu)-Ser(tBu)-Asp(OtBu)-Val-Ser(Oxa)-OH Fragment-3: Fmoc-Ser(tBu)-Tyr(tBu)-Leu-Glu(OtBu)-Gly-OH Fragment-4: Fmoc-Gln(Trt)-Ala-Ala-Lys(PEG-PEG-y-Glu-octadecane dioic acid)-Glu(OtBu)- Phe-Ile-Ala-Trp(Boc)-OH Fragment-5: Leu-Val-Arg(pbf)-Gly-Arg(pbf)-Gly-OtBu Fragment-6: H-Gln(Trt)-Ala-Ala-Lys(Cl 8diacid mono-t-butyl-y-Glu(AEEA-AEEA)-OtBu)-Glu (OtBu)-Phe-Ile-Ala-Trp(Boc)-Leu-Val-Arg(Pbf)-Gly-Arg(Pbf)-Gly-OtBu Fragment-7: Boc-His(X)-Aib-Glu(OtBu)-Gly-Thr(tBu)-Phe-Thr(tBu)-Ser(tBu)-Asp (OtBu)-Val-Ser(Oxa)-OH; wherein X is Boc or Trt The present invention also relates to novel fragment-4 which is useful in the preparation of Semaglutide. Fmoc-Gln(Trt)-Ala-Ala-Lys(C18 diacid mono-t-butyl-y-Glu(AEEA-AEEA)-OtBu)-Glu (OtBu)-Phe-Ile-Ala-Trp(Boc)-OH (fragment-4)
改进的Semaglutide制备方法,具有结构式(I)。His-Aib-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys(C18二酸单叔丁基-γ-谷氨酸(AEEA-AEEA)-OtBu)-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly-OH 结构式-I 本发明涉及以下在Semaglutide制备中有用的片段。 片段-1:Boc-His(X)-Aib-Glu(OtBu)-Gly-OH;其中X为Boc或Trt 片段-2:Fmoc-Thr(tBu)-Phe-Thr(tBu)-Ser(tBu)-Asp(OtBu)-Val-Ser(Oxa)-OH 片段-3:Fmoc-Ser(tBu)-Tyr(tBu)-Leu-Glu(OtBu)-Gly-OH 片段-4:Fmoc-Gln(Trt)-Ala-Ala-Lys(PEG-PEG-y-Glu-辛二酸)-Glu(OtBu)-Phe-Ile-Ala-Trp(Boc)-OH 片段-5:Leu-Val-Arg(pbf)-Gly-Arg(pbf)-Gly-OtBu 片段-6:H-Gln(Trt)-Ala-Ala-Lys(Cl 8二酸单叔丁基-γ-谷氨酸(AEEA-AEEA)-OtBu)-Glu (OtBu)-Phe-Ile-Ala-Trp(Boc)-Leu-Val-Arg(Pbf)-Gly-Arg(Pbf)-Gly-OtBu 片段-7:Boc-His(X)-Aib-Glu(OtBu)-Gly-Thr(tBu)-Phe-Thr(tBu)-Ser(tBu)-Asp (OtBu)-Val-Ser(Oxa)-OH;其中X为Boc或Trt 本发明还涉及在Semaglutide制备中有用的新型片段-4。 Fmoc-Gln(Trt)-Ala-Ala-Lys(C18二酸单叔丁基-γ-谷氨酸(AEEA-AEEA)-OtBu)-Glu (OtBu)-Phe-Ile-Ala-Trp(Boc)-OH(片段-4)