CN Patent

CN108503610B — 一种光学纯的(r)-4-正丙基-二氢呋喃-2(3h)-酮的制备方法

Assigned to Beijing Ai Bestcomm Pharmaceutical Ltd By Share Ltd · Expires 2019-09-13 · 7y expired

What this patent protects

本发明涉及一种光学纯的(R)‑4‑正丙基‑二氢呋喃‑2(3H)‑酮的制备方法，属于化学合成领域。该本发明方法以光学纯的(S)‑3‑正戊酰基‑4‑取代的噁唑‑2‑酮为原料，经过烷基化、还原、氰基水解、酯化等步骤制备得到光学纯的(R)‑4‑正丙基‑二氢呋喃‑2(3H)‑酮。本发明提供的制备方法原料易得，价格低廉，且总收率高、所得产物光学纯度高、反应条件和操作过程简单。

USPTO Abstract

本发明涉及一种光学纯的(R)‑4‑正丙基‑二氢呋喃‑2(3H)‑酮的制备方法，属于化学合成领域。该本发明方法以光学纯的(S)‑3‑正戊酰基‑4‑取代的噁唑‑2‑酮为原料，经过烷基化、还原、氰基水解、酯化等步骤制备得到光学纯的(R)‑4‑正丙基‑二氢呋喃‑2(3H)‑酮。本发明提供的制备方法原料易得，价格低廉，且总收率高、所得产物光学纯度高、反应条件和操作过程简单。

Drugs covered by this patent

Patent Metadata

Patent number
CN108503610B
Jurisdiction
CN
Classification
—
Expires
2019-09-13
Drug substance claim
No
Drug product claim
No
Assignee
Beijing Ai Bestcomm Pharmaceutical 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.

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