EP Patent

EP1954264B1 — Process for the manufacture of epoxybutanol intermediates

Assigned to Basilea Pharmaceutica AG · Expires 2009-10-07 · 17y expired

What this patent protects

Disclosed is a process for the manufacture of a compound of formula (IV-a) wherein PrG represents a hydroxyl-protecting group, in which process 1,4-difluorobenzene is reacted in the presence of a base with a compound of formula (III-a) wherein PrG has the same meaning as …

USPTO Abstract

Disclosed is a process for the manufacture of a compound of formula (IV-a) wherein PrG represents a hydroxyl-protecting group, in which process 1,4-difluorobenzene is reacted in the presence of a base with a compound of formula (III-a) wherein PrG has the same meaning as in Formula (IV-a). R 3 represents methyl or ethyl, and R 4 represents methyl, ethyl or methoxy, or R 3 and R 4 taken together with the nitrogen atom to which they are bound represent a 4- to 6-membered heterocyclic group having either no or one or two further heteroatoms selected from nitrogen or oxygen.

Drugs covered by this patent

Patent Metadata

Patent number
EP1954264B1
Jurisdiction
EP
Classification
—
Expires
2009-10-07
Drug substance claim
No
Drug product claim
No
Assignee
Basilea Pharmaceutica AG
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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