CN Patent

CN109646454A — 异麦芽糖酐铁1000的制备方法

Assigned to Borui Pharmaceutical (suzhou) Ltd By Share Ltd · Expires 2019-04-19 · 7y expired

What this patent protects

本发明提供了一种异麦芽糖酐铁1000的制备方法,该方法包括(1)右旋糖酐1用硼氢化钠还原;(2)步骤(1)得到的还原低聚糖与三价铁盐,氢氧化钠络合反应;(3)步骤(2)得到的反应液超滤纯化;(4)步骤(3)得到的反应液用柠檬酸活化;(5)干燥得到异麦芽糖酐铁1000。通过本发明方法,在整个操作过程中右旋糖酐1只经过简单还原处理,避免了多聚糖水解,纯化的复杂工序,使得整个生产周期大幅缩短,生产成本降低。

USPTO Abstract

本发明提供了一种异麦芽糖酐铁1000的制备方法,该方法包括(1)右旋糖酐1用硼氢化钠还原;(2)步骤(1)得到的还原低聚糖与三价铁盐,氢氧化钠络合反应;(3)步骤(2)得到的反应液超滤纯化;(4)步骤(3)得到的反应液用柠檬酸活化;(5)干燥得到异麦芽糖酐铁1000。通过本发明方法,在整个操作过程中右旋糖酐1只经过简单还原处理,避免了多聚糖水解,纯化的复杂工序,使得整个生产周期大幅缩短,生产成本降低。

Drugs covered by this patent

Patent Metadata

Patent number
CN109646454A
Jurisdiction
CN
Classification
Expires
2019-04-19
Drug substance claim
No
Drug product claim
No
Assignee
Borui Pharmaceutical (suzhou) Ltd By Share 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.