CN Patent

CN115505052B — 一种β-环糊精衍生物的制备方法

Assigned to Anhui Puli Pharmaceutical Co ltd · Expires 2023-05-23 · 3y expired

What this patent protects

本发明提供了一种环糊精衍生物的制备方法，其中环糊精溶解后加入改性的介孔二氧化硅颗粒，加入1，4‑丁烷磺内酯，加热状况下进行回流反应2‑7h，反应完成后将改性介孔二氧化硅颗粒滤除并干燥，再将反应液冷却后通过该颗粒过筛，滤出液用纳滤膜分离杂质，干燥，得到白色粉末状磺丁基‑β‑环糊精。

USPTO Abstract

本发明提供了一种环糊精衍生物的制备方法，其中环糊精溶解后加入改性的介孔二氧化硅颗粒，加入1，4‑丁烷磺内酯，加热状况下进行回流反应2‑7h，反应完成后将改性介孔二氧化硅颗粒滤除并干燥，再将反应液冷却后通过该颗粒过筛，滤出液用纳滤膜分离杂质，干燥，得到白色粉末状磺丁基‑β‑环糊精。

Drugs covered by this patent

Patent Metadata

Patent number
CN115505052B
Jurisdiction
CN
Classification
—
Expires
2023-05-23
Drug substance claim
No
Drug product claim
No
Assignee
Anhui Puli 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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