申请人:Ferring B.V.
公开号:EP2447276A1
公开(公告)日:2012-05-02
The present invention relates to a liquid (or solution)-phase manufacturing process for preparing the decapeptide Degarelix, its protected precursor, and other useful intermediates. The invention further relates to polypeptides useful in the solution-phase manufacturing process and to the purification of Degarelix itself.
Degarelix can be obtained by subjecting a Degarelix precursor according to formula II:
(P1)AA1-AA2-AA3-AA4(P4)-AA5-AA6(P6)-AA7-AA8(P8)-AA9-AA10-NH2 (II)
or a salt or solvate thereof,
to a treatment with a cleaving agent in an organic solvent,
wherein
P1 is an amino protecting groups; preferably acetyl;
P4 is hydrogen or a hydroxyl protecting group, preferably a hydroxyl protecting group;
P6 is hydrogen or an amino protecting groups; preferably an amino protecting groups; and
P8 is an amino protecting group.
本发明涉及一种制备十肽Degarelix及其受保护的前体和其他有用中间体的液相(或溶液相)制造工艺。本发明还涉及在溶液相制造过程中有用的多肽以及Degarelix本身的纯化。通过将公式II的Degarelix前体或其盐或溶剂处理剂在有机溶剂中进行处理,可以获得Degarelix: (P1)AA1-AA2-AA3-AA4(P4)-AA5-AA6(P6)-AA7-AA8(P8)-AA9-AA10-NH2。其中P1是氨基保护基,优选为乙酰基;P4是氢或羟基保护基,优选为羟基保护基;P6是氢或氨基保护基,优选为氨基保护基;P8是氨基保护基。