CN Patent

CN110314221B — 一种注射用硼替佐米的冻干工艺

Assigned to Sichuan Huiyu Pharmaceutical Co Ltd · Expires 2020-09-04 · 6y expired

What this patent protects

本发明公开了一种注射用硼替佐米的冻干工艺,包括(1)预冻;(2)一次干燥;(3)解析干燥;其中,预冻包括以下步骤:(1a)将药液由常温降为‑18~‑14℃下并保持1~3h;(1b)以≥1.8℃/min的降温速度将步骤(1a)所得样品降温至‑45~‑35℃并保持2~3h;(1c)将(1a)所得样品升温至‑22~‑20℃并保持2~4h;(1d)将(1c)所得样品降温至‑45~‑35℃并保持2~4h。本发明的硼替佐米冻干工艺,通过对预冻工艺及一次干燥进行工艺优化,有效解决了由于预冻过程中表面浓缩,晶体结构不均所造成的冻干效率低,冻干制品澄清度差、复溶慢,水分和…

USPTO Abstract

本发明公开了一种注射用硼替佐米的冻干工艺,包括(1)预冻;(2)一次干燥;(3)解析干燥;其中,预冻包括以下步骤:(1a)将药液由常温降为‑18~‑14℃下并保持1~3h;(1b)以≥1.8℃/min的降温速度将步骤(1a)所得样品降温至‑45~‑35℃并保持2~3h;(1c)将(1a)所得样品升温至‑22~‑20℃并保持2~4h;(1d)将(1c)所得样品降温至‑45~‑35℃并保持2~4h。本发明的硼替佐米冻干工艺,通过对预冻工艺及一次干燥进行工艺优化,有效解决了由于预冻过程中表面浓缩,晶体结构不均所造成的冻干效率低,冻干制品澄清度差、复溶慢,水分和溶剂残留偏高等问题,所得冻干成品各方面品质优异。

Drugs covered by this patent

Patent Metadata

Patent number
CN110314221B
Jurisdiction
CN
Classification
Expires
2020-09-04
Drug substance claim
No
Drug product claim
No
Assignee
Sichuan Huiyu Pharmaceutical Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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