GB Patent

GB9713730D0 — Organic compounds

Assigned to Novartis AG · Expires 1997-09-03 · 29y expired

What this patent protects

33-Epichloro-33-desoxyascomycin of formula Iand various tautomeric or forms thereof, in crystalline form, such as Form A and Form B.Their preparation involves appropriately converting amorphous compound of formula I, or compound of formula I in other than Form A, or compound of f…

USPTO Abstract

33-Epichloro-33-desoxyascomycin of formula Iand various tautomeric or forms thereof, in crystalline form, such as Form A and Form B.Their preparation involves appropriately converting amorphous compound of formula I, or compound of formula I in other than Form A, or compound of formula I in other than Form B, respectively, from a solution thereof under crystallization-inducing conditions or conditions inducing preferential crystallization of Form A or B, respectively.Such crystals are particularly indicated for use in the preparation of topical galenical forms of the compound for pharmaceutical use, e.g. creams, emulsions and ointments.

Drugs covered by this patent

Patent Metadata

Patent number
GB9713730D0
Jurisdiction
GB
Classification
—
Expires
1997-09-03
Drug substance claim
No
Drug product claim
No
Assignee
Novartis 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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