Process for the preparation of Degarelix acetate and Degarelix acetate-mannitol premix
申请人:RK Pharma Solutions LLC
公开号:US20210094984A1
公开(公告)日:2021-04-01
Methods for preparing degarelix acetate are provided that include the steps of providing a suitable resin; deprotecting the resin with a diethylenetriamine solution; reacting sequentially the deprotected resin with different Fmoc protected amino acids ;deprotecting the amino acid in each sequence with a diethylenetriamine solution in a stepwise fashion to yield a degarelix crude compound; and purifying the degarelix crude compound to yield pharmaceutically acceptable degarelix acetate. Methods of preparing degarelix acetate-mannitol premix and the resulting degarelix acetate-mannitol premix are also provided
提供了制备地加雷利司醋酸盐的方法,包括以下步骤:提供适当的树脂;用二乙二胺溶液去保护树脂;依次用不同的Fmoc保护氨基酸与去保护的树脂反应;以逐步方式用二乙二胺溶液去保护每个序列中的氨基酸,得到地加雷利司粗化合物;并纯化地加雷利司粗化合物,得到药用可接受的地加雷利司醋酸盐。还提供了制备地加雷利司醋酸盐-甘露醇预混物及由此得到的地加雷利司醋酸盐-甘露醇预混物的方法。