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Last Updated: September 26, 2021

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Details for Patent: 6,423,722

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Summary for Patent: 6,423,722
Title: Crystalline macrolides and process for their preparation
Abstract:33-Epichloro-33-desoxyascomycin of formula I ##STR1## and 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.
Inventor(s): Dosenbach; Cornelia (Efringen-Kirchen, DE), Grassberger; Maximilian (Vienna, AT), Hartmann; Otto (Basel, CH), Horvath; Amarylla (Vienna, AT), Mutz; Jean-Paul (Blotzheim, FR), Penn; Gerhard (Oberwil, CH), Pfeffer; Sabine (Weil, DE), Wieckhusen; Dierk (Binzen, DE)
Assignee: Novartis AG (Basel, CH)
Application Number:09/690,404
Patent Claim Types:
see list of patent claims
Compound; Process; Composition; Use;

Drugs Protected by US Patent 6,423,722

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,423,722

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9713730Jun 30, 1997

International Family Members for US Patent 6,423,722

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 017754 ⤷  Free Forever Trial
Austria 287410 ⤷  Free Forever Trial
Australia 739211 ⤷  Free Forever Trial
Australia 8540998 ⤷  Free Forever Trial
Brazil 9810956 ⤷  Free Forever Trial
Canada 2290412 ⤷  Free Forever Trial
China 1139595 ⤷  Free Forever Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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