CN Patent

CN107141238A — 一种马西替坦中间体的制备方法

Assigned to Individual · Expires 2017-09-08 · 9y expired

What this patent protects

本发明公开了一种马西替坦中间体正丙胺基磺酰胺的制备方法,包括：以正丙胺和磺酰氯为起始原料，三乙胺为缚酸剂，通过两步反应制备正丙胺基磺酰胺粗品，经过后处理蒸馏得到所述正丙胺基磺酰胺。本发明制备方法使用价廉易得的原料，各步反应操作简单，反应步骤和反应时间短，易于纯化，收率高，成本低，适合工业化大生产。

USPTO Abstract

本发明公开了一种马西替坦中间体正丙胺基磺酰胺的制备方法,包括：以正丙胺和磺酰氯为起始原料，三乙胺为缚酸剂，通过两步反应制备正丙胺基磺酰胺粗品，经过后处理蒸馏得到所述正丙胺基磺酰胺。本发明制备方法使用价廉易得的原料，各步反应操作简单，反应步骤和反应时间短，易于纯化，收率高，成本低，适合工业化大生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN107141238A
Jurisdiction
CN
Classification
—
Expires
2017-09-08
Drug substance claim
No
Drug product claim
No
Assignee
Individual
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.